100575980

素因数分解:

$2^2\times 5^1\times {\mathrm{53}}^1\times {\mathrm{239}}^1\times {\mathrm{397}}^1$

素因数の和:698

約数の個数: 48

約数和(自身を含む): 216639360

約数和(自身を除く): 116063380

約数列:

[1, 2, 4, 5, 10, 20, 53, 106, 212, 239, 265, 397, 478, 530, 794, 956, 1060, 1195, 1588, 1985, 2390, 3970, 4780, 7940, 12667, 21041, 25334, 42082, 50668, 63335, 84164, 94883, 105205, 126670, 189766, 210410, 253340, 379532, 420820, 474415, 948830, 1897660, 5028799, 10057598, 20115196, 25143995, 50287990, 100575980]

約数ペア:

[(1, 100575980), (2, 50287990), (4, 25143995), (5, 20115196), (10, 10057598), (20, 5028799), (53, 1897660), (106, 948830), (212, 474415), (239, 420820), (265, 379532), (397, 253340), (478, 210410), (530, 189766), (794, 126670), (956, 105205), (1060, 94883), (1195, 84164), (1588, 63335), (1985, 50668), (2390, 42082), (3970, 25334), (4780, 21041), (7940, 12667)]