20672471920

素因数分解:

$2^4\times 5^1\times {\mathrm{17}}^1\times {\mathrm{53}}^1\times {\mathrm{59}}^1\times {\mathrm{4861}}^1$

素因数の和:5003

約数の個数: 160

約数和(自身を含む): 52740642240

約数和(自身を除く): 32068170320

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 34, 40, 53, 59, 68, 80, 85, 106, 118, 136, 170, 212, 236, 265, 272, 295, 340, 424, 472, 530, 590, 680, 848, 901, 944, 1003, 1060, 1180, 1360, 1802, 2006, 2120, 2360, 3127, 3604, 4012, 4240, 4505, 4720, 4861, 5015, 6254, 7208, 8024, 9010, 9722, 10030, 12508, 14416, 15635, 16048, 18020, 19444, 20060, 24305, 25016, 31270, 36040, 38888, 40120, 48610, 50032, 53159, 62540, 72080, 77776, 80240, 82637, 97220, 106318, 125080, 165274, 194440, 212636, 250160, 257633, 265795, 286799, 330548, 388880, 413185, 425272, 515266, 531590, 573598, 661096, 826370, 850544, 1030532, 1063180, 1147196, 1288165, 1322192, 1433995, 1652740, 2061064, 2126360, 2294392, 2576330, 2867990, 3305480, 4122128, 4252720, 4379761, 4588784, 4875583, 5152660, 5735980, 6610960, 8759522, 9751166, 10305320, 11471960, 15200347, 17519044, 19502332, 20610640, 21898805, 22943920, 24377915, 30400694, 35038088, 39004664, 43797610, 48755830, 60801388, 70076176, 76001735, 78009328, 87595220, 97511660, 121602776, 152003470, 175190440, 195023320, 243205552, 258405899, 304006940, 350380880, 390046640, 516811798, 608013880, 1033623596, 1216027760, 1292029495, 2067247192, 2584058990, 4134494384, 5168117980, 10336235960, 20672471920]

約数ペア:

[(1, 20672471920), (2, 10336235960), (4, 5168117980), (5, 4134494384), (8, 2584058990), (10, 2067247192), (16, 1292029495), (17, 1216027760), (20, 1033623596), (34, 608013880), (40, 516811798), (53, 390046640), (59, 350380880), (68, 304006940), (80, 258405899), (85, 243205552), (106, 195023320), (118, 175190440), (136, 152003470), (170, 121602776), (212, 97511660), (236, 87595220), (265, 78009328), (272, 76001735), (295, 70076176), (340, 60801388), (424, 48755830), (472, 43797610), (530, 39004664), (590, 35038088), (680, 30400694), (848, 24377915), (901, 22943920), (944, 21898805), (1003, 20610640), (1060, 19502332), (1180, 17519044), (1360, 15200347), (1802, 11471960), (2006, 10305320), (2120, 9751166), (2360, 8759522), (3127, 6610960), (3604, 5735980), (4012, 5152660), (4240, 4875583), (4505, 4588784), (4720, 4379761), (4861, 4252720), (5015, 4122128), (6254, 3305480), (7208, 2867990), (8024, 2576330), (9010, 2294392), (9722, 2126360), (10030, 2061064), (12508, 1652740), (14416, 1433995), (15635, 1322192), (16048, 1288165), (18020, 1147196), (19444, 1063180), (20060, 1030532), (24305, 850544), (25016, 826370), (31270, 661096), (36040, 573598), (38888, 531590), (40120, 515266), (48610, 425272), (50032, 413185), (53159, 388880), (62540, 330548), (72080, 286799), (77776, 265795), (80240, 257633), (82637, 250160), (97220, 212636), (106318, 194440), (125080, 165274)]