778961560

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^2\times {\mathrm{139}}^1\times {\mathrm{829}}^1$

素因数の和:1005

約数の個数: 96

約数和(自身を含む): 1913814000

約数和(自身を除く): 1134852440

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 139, 169, 260, 278, 338, 520, 556, 676, 695, 829, 845, 1112, 1352, 1390, 1658, 1690, 1807, 2780, 3316, 3380, 3614, 4145, 5560, 6632, 6760, 7228, 8290, 9035, 10777, 14456, 16580, 18070, 21554, 23491, 33160, 36140, 43108, 46982, 53885, 72280, 86216, 93964, 107770, 115231, 117455, 140101, 187928, 215540, 230462, 234910, 280202, 431080, 460924, 469820, 560404, 576155, 700505, 921848, 939640, 1120808, 1152310, 1401010, 1498003, 2304620, 2802020, 2996006, 4609240, 5604040, 5992012, 7490015, 11984024, 14980030, 19474039, 29960060, 38948078, 59920120, 77896156, 97370195, 155792312, 194740390, 389480780, 778961560]

約数ペア:

[(1, 778961560), (2, 389480780), (4, 194740390), (5, 155792312), (8, 97370195), (10, 77896156), (13, 59920120), (20, 38948078), (26, 29960060), (40, 19474039), (52, 14980030), (65, 11984024), (104, 7490015), (130, 5992012), (139, 5604040), (169, 4609240), (260, 2996006), (278, 2802020), (338, 2304620), (520, 1498003), (556, 1401010), (676, 1152310), (695, 1120808), (829, 939640), (845, 921848), (1112, 700505), (1352, 576155), (1390, 560404), (1658, 469820), (1690, 460924), (1807, 431080), (2780, 280202), (3316, 234910), (3380, 230462), (3614, 215540), (4145, 187928), (5560, 140101), (6632, 117455), (6760, 115231), (7228, 107770), (8290, 93964), (9035, 86216), (10777, 72280), (14456, 53885), (16580, 46982), (18070, 43108), (21554, 36140), (23491, 33160)]