20161097680

素因数分解:

$2^4\times 5^1\times {\mathrm{59}}^1\times {\mathrm{181}}^1\times {\mathrm{23599}}^1$

素因数の和:23852

約数の個数: 80

約数和(自身を含む): 47934432000

約数和(自身を除く): 27773334320

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 59, 80, 118, 181, 236, 295, 362, 472, 590, 724, 905, 944, 1180, 1448, 1810, 2360, 2896, 3620, 4720, 7240, 10679, 14480, 21358, 23599, 42716, 47198, 53395, 85432, 94396, 106790, 117995, 170864, 188792, 213580, 235990, 377584, 427160, 471980, 854320, 943960, 1392341, 1887920, 2784682, 4271419, 5569364, 6961705, 8542838, 11138728, 13923410, 17085676, 21357095, 22277456, 27846820, 34171352, 42714190, 55693640, 68342704, 85428380, 111387280, 170856760, 252013721, 341713520, 504027442, 1008054884, 1260068605, 2016109768, 2520137210, 4032219536, 5040274420, 10080548840, 20161097680]

約数ペア:

[(1, 20161097680), (2, 10080548840), (4, 5040274420), (5, 4032219536), (8, 2520137210), (10, 2016109768), (16, 1260068605), (20, 1008054884), (40, 504027442), (59, 341713520), (80, 252013721), (118, 170856760), (181, 111387280), (236, 85428380), (295, 68342704), (362, 55693640), (472, 42714190), (590, 34171352), (724, 27846820), (905, 22277456), (944, 21357095), (1180, 17085676), (1448, 13923410), (1810, 11138728), (2360, 8542838), (2896, 6961705), (3620, 5569364), (4720, 4271419), (7240, 2784682), (10679, 1887920), (14480, 1392341), (21358, 943960), (23599, 854320), (42716, 471980), (47198, 427160), (53395, 377584), (85432, 235990), (94396, 213580), (106790, 188792), (117995, 170864)]