399776000

素因数分解:

$2^8\times 5^3\times {\mathrm{13}}^1\times {\mathrm{31}}^2$

素因数の和:106

約数の個数: 216

約数和(自身を含む): 1108211832

約数和(自身を除く): 708435832

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 25, 26, 31, 32, 40, 50, 52, 62, 64, 65, 80, 100, 104, 124, 125, 128, 130, 155, 160, 200, 208, 248, 250, 256, 260, 310, 320, 325, 400, 403, 416, 496, 500, 520, 620, 640, 650, 775, 800, 806, 832, 961, 992, 1000, 1040, 1240, 1280, 1300, 1550, 1600, 1612, 1625, 1664, 1922, 1984, 2000, 2015, 2080, 2480, 2600, 3100, 3200, 3224, 3250, 3328, 3844, 3875, 3968, 4000, 4030, 4160, 4805, 4960, 5200, 6200, 6400, 6448, 6500, 7688, 7750, 7936, 8000, 8060, 8320, 9610, 9920, 10075, 10400, 12400, 12493, 12896, 13000, 15376, 15500, 16000, 16120, 16640, 19220, 19840, 20150, 20800, 24025, 24800, 24986, 25792, 26000, 30752, 31000, 32000, 32240, 38440, 39680, 40300, 41600, 48050, 49600, 49972, 50375, 51584, 52000, 61504, 62000, 62465, 64480, 76880, 80600, 83200, 96100, 99200, 99944, 100750, 103168, 104000, 120125, 123008, 124000, 124930, 128960, 153760, 161200, 192200, 198400, 199888, 201500, 208000, 240250, 246016, 248000, 249860, 257920, 307520, 312325, 322400, 384400, 399776, 403000, 416000, 480500, 496000, 499720, 515840, 615040, 624650, 644800, 768800, 799552, 806000, 961000, 992000, 999440, 1230080, 1249300, 1289600, 1537600, 1561625, 1599104, 1612000, 1922000, 1998880, 2498600, 2579200, 3075200, 3123250, 3198208, 3224000, 3844000, 3997760, 4997200, 6150400, 6246500, 6448000, 7688000, 7995520, 9994400, 12493000, 12896000, 15376000, 15991040, 19988800, 24986000, 30752000, 39977600, 49972000, 79955200, 99944000, 199888000, 399776000]

約数ペア:

[(1, 399776000), (2, 199888000), (4, 99944000), (5, 79955200), (8, 49972000), (10, 39977600), (13, 30752000), (16, 24986000), (20, 19988800), (25, 15991040), (26, 15376000), (31, 12896000), (32, 12493000), (40, 9994400), (50, 7995520), (52, 7688000), (62, 6448000), (64, 6246500), (65, 6150400), (80, 4997200), (100, 3997760), (104, 3844000), (124, 3224000), (125, 3198208), (128, 3123250), (130, 3075200), (155, 2579200), (160, 2498600), (200, 1998880), (208, 1922000), (248, 1612000), (250, 1599104), (256, 1561625), (260, 1537600), (310, 1289600), (320, 1249300), (325, 1230080), (400, 999440), (403, 992000), (416, 961000), (496, 806000), (500, 799552), (520, 768800), (620, 644800), (640, 624650), (650, 615040), (775, 515840), (800, 499720), (806, 496000), (832, 480500), (961, 416000), (992, 403000), (1000, 399776), (1040, 384400), (1240, 322400), (1280, 312325), (1300, 307520), (1550, 257920), (1600, 249860), (1612, 248000), (1625, 246016), (1664, 240250), (1922, 208000), (1984, 201500), (2000, 199888), (2015, 198400), (2080, 192200), (2480, 161200), (2600, 153760), (3100, 128960), (3200, 124930), (3224, 124000), (3250, 123008), (3328, 120125), (3844, 104000), (3875, 103168), (3968, 100750), (4000, 99944), (4030, 99200), (4160, 96100), (4805, 83200), (4960, 80600), (5200, 76880), (6200, 64480), (6400, 62465), (6448, 62000), (6500, 61504), (7688, 52000), (7750, 51584), (7936, 50375), (8000, 49972), (8060, 49600), (8320, 48050), (9610, 41600), (9920, 40300), (10075, 39680), (10400, 38440), (12400, 32240), (12493, 32000), (12896, 31000), (13000, 30752), (15376, 26000), (15500, 25792), (16000, 24986), (16120, 24800), (16640, 24025), (19220, 20800), (19840, 20150)]