7987490120

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{89}}^1\times {\mathrm{191}}^1\times {\mathrm{691}}^1$

素因数の和:999

約数の個数: 128

約数和(自身を含む): 19371571200

約数和(自身を除く): 11384081080

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 68, 85, 89, 136, 170, 178, 191, 340, 356, 382, 445, 680, 691, 712, 764, 890, 955, 1382, 1513, 1528, 1780, 1910, 2764, 3026, 3247, 3455, 3560, 3820, 5528, 6052, 6494, 6910, 7565, 7640, 11747, 12104, 12988, 13820, 15130, 16235, 16999, 23494, 25976, 27640, 30260, 32470, 33998, 46988, 58735, 60520, 61499, 64940, 67996, 84995, 93976, 117470, 122998, 129880, 131981, 135992, 169990, 234940, 245996, 263962, 288983, 307495, 339980, 469880, 491992, 527924, 577966, 614990, 659905, 679960, 1045483, 1055848, 1155932, 1229980, 1319810, 1444915, 2090966, 2243677, 2311864, 2459960, 2639620, 2889830, 4181932, 4487354, 5227415, 5279240, 5779660, 8363864, 8974708, 10454830, 11218385, 11559320, 11746309, 17949416, 20909660, 22436770, 23492618, 41819320, 44873540, 46985236, 58731545, 89747080, 93970472, 117463090, 199687253, 234926180, 399374506, 469852360, 798749012, 998436265, 1597498024, 1996872530, 3993745060, 7987490120]

約数ペア:

[(1, 7987490120), (2, 3993745060), (4, 1996872530), (5, 1597498024), (8, 998436265), (10, 798749012), (17, 469852360), (20, 399374506), (34, 234926180), (40, 199687253), (68, 117463090), (85, 93970472), (89, 89747080), (136, 58731545), (170, 46985236), (178, 44873540), (191, 41819320), (340, 23492618), (356, 22436770), (382, 20909660), (445, 17949416), (680, 11746309), (691, 11559320), (712, 11218385), (764, 10454830), (890, 8974708), (955, 8363864), (1382, 5779660), (1513, 5279240), (1528, 5227415), (1780, 4487354), (1910, 4181932), (2764, 2889830), (3026, 2639620), (3247, 2459960), (3455, 2311864), (3560, 2243677), (3820, 2090966), (5528, 1444915), (6052, 1319810), (6494, 1229980), (6910, 1155932), (7565, 1055848), (7640, 1045483), (11747, 679960), (12104, 659905), (12988, 614990), (13820, 577966), (15130, 527924), (16235, 491992), (16999, 469880), (23494, 339980), (25976, 307495), (27640, 288983), (30260, 263962), (32470, 245996), (33998, 234940), (46988, 169990), (58735, 135992), (60520, 131981), (61499, 129880), (64940, 122998), (67996, 117470), (84995, 93976)]