20496495580

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{389}}^1\times {\mathrm{6473}}^1$

素因数の和:6919

約数の個数: 96

約数和(自身を含む): 48356118720

約数和(自身を除く): 27859623140

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 37, 44, 55, 74, 110, 148, 185, 220, 370, 389, 407, 740, 778, 814, 1556, 1628, 1945, 2035, 3890, 4070, 4279, 6473, 7780, 8140, 8558, 12946, 14393, 17116, 21395, 25892, 28786, 32365, 42790, 57572, 64730, 71203, 71965, 85580, 129460, 142406, 143930, 158323, 239501, 284812, 287860, 316646, 356015, 479002, 633292, 712030, 791615, 958004, 1197505, 1424060, 1583230, 2395010, 2517997, 2634511, 3166460, 4790020, 5035994, 5269022, 10071988, 10538044, 12589985, 13172555, 25179970, 26345110, 27697967, 50359940, 52690220, 55395934, 93165889, 110791868, 138489835, 186331778, 276979670, 372663556, 465829445, 553959340, 931658890, 1024824779, 1863317780, 2049649558, 4099299116, 5124123895, 10248247790, 20496495580]

約数ペア:

[(1, 20496495580), (2, 10248247790), (4, 5124123895), (5, 4099299116), (10, 2049649558), (11, 1863317780), (20, 1024824779), (22, 931658890), (37, 553959340), (44, 465829445), (55, 372663556), (74, 276979670), (110, 186331778), (148, 138489835), (185, 110791868), (220, 93165889), (370, 55395934), (389, 52690220), (407, 50359940), (740, 27697967), (778, 26345110), (814, 25179970), (1556, 13172555), (1628, 12589985), (1945, 10538044), (2035, 10071988), (3890, 5269022), (4070, 5035994), (4279, 4790020), (6473, 3166460), (7780, 2634511), (8140, 2517997), (8558, 2395010), (12946, 1583230), (14393, 1424060), (17116, 1197505), (21395, 958004), (25892, 791615), (28786, 712030), (32365, 633292), (42790, 479002), (57572, 356015), (64730, 316646), (71203, 287860), (71965, 284812), (85580, 239501), (129460, 158323), (142406, 143930)]