78876520

素因数分解:

$2^3\times 5^1\times {\mathrm{29}}^1\times {\mathrm{97}}^1\times {\mathrm{701}}^1$

素因数の和:838

約数の個数: 64

約数和(自身を含む): 185749200

約数和(自身を除く): 106872680

約数列:

[1, 2, 4, 5, 8, 10, 20, 29, 40, 58, 97, 116, 145, 194, 232, 290, 388, 485, 580, 701, 776, 970, 1160, 1402, 1940, 2804, 2813, 3505, 3880, 5608, 5626, 7010, 11252, 14020, 14065, 20329, 22504, 28040, 28130, 40658, 56260, 67997, 81316, 101645, 112520, 135994, 162632, 203290, 271988, 339985, 406580, 543976, 679970, 813160, 1359940, 1971913, 2719880, 3943826, 7887652, 9859565, 15775304, 19719130, 39438260, 78876520]

約数ペア:

[(1, 78876520), (2, 39438260), (4, 19719130), (5, 15775304), (8, 9859565), (10, 7887652), (20, 3943826), (29, 2719880), (40, 1971913), (58, 1359940), (97, 813160), (116, 679970), (145, 543976), (194, 406580), (232, 339985), (290, 271988), (388, 203290), (485, 162632), (580, 135994), (701, 112520), (776, 101645), (970, 81316), (1160, 67997), (1402, 56260), (1940, 40658), (2804, 28130), (2813, 28040), (3505, 22504), (3880, 20329), (5608, 14065), (5626, 14020), (7010, 11252)]