91016720

素因数分解:

$2^4\times 5^1\times {\mathrm{41}}^1\times {\mathrm{27749}}^1$

素因数の和:27803

約数の個数: 40

約数和(自身を含む): 216783000

約数和(自身を除く): 125766280

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 41, 80, 82, 164, 205, 328, 410, 656, 820, 1640, 3280, 27749, 55498, 110996, 138745, 221992, 277490, 443984, 554980, 1109960, 1137709, 2219920, 2275418, 4550836, 5688545, 9101672, 11377090, 18203344, 22754180, 45508360, 91016720]

約数ペア:

[(1, 91016720), (2, 45508360), (4, 22754180), (5, 18203344), (8, 11377090), (10, 9101672), (16, 5688545), (20, 4550836), (40, 2275418), (41, 2219920), (80, 1137709), (82, 1109960), (164, 554980), (205, 443984), (328, 277490), (410, 221992), (656, 138745), (820, 110996), (1640, 55498), (3280, 27749)]