20396940000

素因数分解:

$2^5\times 3^1\times 5^4\times {\mathrm{17}}^1\times {\mathrm{19997}}^1$

素因数の和:20047

約数の個数: 240

約数和(自身を含む): 70845234768

約数和(自身を除く): 50448294768

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 17, 20, 24, 25, 30, 32, 34, 40, 48, 50, 51, 60, 68, 75, 80, 85, 96, 100, 102, 120, 125, 136, 150, 160, 170, 200, 204, 240, 250, 255, 272, 300, 340, 375, 400, 408, 425, 480, 500, 510, 544, 600, 625, 680, 750, 800, 816, 850, 1000, 1020, 1200, 1250, 1275, 1360, 1500, 1632, 1700, 1875, 2000, 2040, 2125, 2400, 2500, 2550, 2720, 3000, 3400, 3750, 4000, 4080, 4250, 5000, 5100, 6000, 6375, 6800, 7500, 8160, 8500, 10000, 10200, 10625, 12000, 12750, 13600, 15000, 17000, 19997, 20000, 20400, 21250, 25500, 30000, 31875, 34000, 39994, 40800, 42500, 51000, 59991, 60000, 63750, 68000, 79988, 85000, 99985, 102000, 119982, 127500, 159976, 170000, 199970, 204000, 239964, 255000, 299955, 319952, 339949, 340000, 399940, 479928, 499925, 510000, 599910, 639904, 679898, 799880, 959856, 999850, 1019847, 1020000, 1199820, 1359796, 1499775, 1599760, 1699745, 1919712, 1999700, 2039694, 2399640, 2499625, 2719592, 2999550, 3199520, 3399490, 3999400, 4079388, 4799280, 4999250, 5099235, 5439184, 5999100, 6798980, 7498875, 7998800, 8158776, 8498725, 9598560, 9998500, 10198470, 10878368, 11998200, 12498125, 13597960, 14997750, 15997600, 16317552, 16997450, 19997000, 20396940, 23996400, 24996250, 25496175, 27195920, 29995500, 32635104, 33994900, 37494375, 39994000, 40793880, 42493625, 47992800, 49992500, 50992350, 54391840, 59991000, 67989800, 74988750, 79988000, 81587760, 84987250, 99985000, 101984700, 119982000, 127480875, 135979600, 149977500, 163175520, 169974500, 199970000, 203969400, 212468125, 239964000, 254961750, 271959200, 299955000, 339949000, 399940000, 407938800, 424936250, 509923500, 599910000, 637404375, 679898000, 815877600, 849872500, 1019847000, 1199820000, 1274808750, 1359796000, 1699745000, 2039694000, 2549617500, 3399490000, 4079388000, 5099235000, 6798980000, 10198470000, 20396940000]

約数ペア:

[(1, 20396940000), (2, 10198470000), (3, 6798980000), (4, 5099235000), (5, 4079388000), (6, 3399490000), (8, 2549617500), (10, 2039694000), (12, 1699745000), (15, 1359796000), (16, 1274808750), (17, 1199820000), (20, 1019847000), (24, 849872500), (25, 815877600), (30, 679898000), (32, 637404375), (34, 599910000), (40, 509923500), (48, 424936250), (50, 407938800), (51, 399940000), (60, 339949000), (68, 299955000), (75, 271959200), (80, 254961750), (85, 239964000), (96, 212468125), (100, 203969400), (102, 199970000), (120, 169974500), (125, 163175520), (136, 149977500), (150, 135979600), (160, 127480875), (170, 119982000), (200, 101984700), (204, 99985000), (240, 84987250), (250, 81587760), (255, 79988000), (272, 74988750), (300, 67989800), (340, 59991000), (375, 54391840), (400, 50992350), (408, 49992500), (425, 47992800), (480, 42493625), (500, 40793880), (510, 39994000), (544, 37494375), (600, 33994900), (625, 32635104), (680, 29995500), (750, 27195920), (800, 25496175), (816, 24996250), (850, 23996400), (1000, 20396940), (1020, 19997000), (1200, 16997450), (1250, 16317552), (1275, 15997600), (1360, 14997750), (1500, 13597960), (1632, 12498125), (1700, 11998200), (1875, 10878368), (2000, 10198470), (2040, 9998500), (2125, 9598560), (2400, 8498725), (2500, 8158776), (2550, 7998800), (2720, 7498875), (3000, 6798980), (3400, 5999100), (3750, 5439184), (4000, 5099235), (4080, 4999250), (4250, 4799280), (5000, 4079388), (5100, 3999400), (6000, 3399490), (6375, 3199520), (6800, 2999550), (7500, 2719592), (8160, 2499625), (8500, 2399640), (10000, 2039694), (10200, 1999700), (10625, 1919712), (12000, 1699745), (12750, 1599760), (13600, 1499775), (15000, 1359796), (17000, 1199820), (19997, 1020000), (20000, 1019847), (20400, 999850), (21250, 959856), (25500, 799880), (30000, 679898), (31875, 639904), (34000, 599910), (39994, 510000), (40800, 499925), (42500, 479928), (51000, 399940), (59991, 340000), (60000, 339949), (63750, 319952), (68000, 299955), (79988, 255000), (85000, 239964), (99985, 204000), (102000, 199970), (119982, 170000), (127500, 159976)]