7855580

素因数分解:

$2^2\times 5^1\times {\mathrm{47}}^1\times {\mathrm{61}}^1\times {\mathrm{137}}^1$

素因数の和:254

約数の個数: 48

約数和(自身を含む): 17248896

約数和(自身を除く): 9393316

約数列:

[1, 2, 4, 5, 10, 20, 47, 61, 94, 122, 137, 188, 235, 244, 274, 305, 470, 548, 610, 685, 940, 1220, 1370, 2740, 2867, 5734, 6439, 8357, 11468, 12878, 14335, 16714, 25756, 28670, 32195, 33428, 41785, 57340, 64390, 83570, 128780, 167140, 392779, 785558, 1571116, 1963895, 3927790, 7855580]

約数ペア:

[(1, 7855580), (2, 3927790), (4, 1963895), (5, 1571116), (10, 785558), (20, 392779), (47, 167140), (61, 128780), (94, 83570), (122, 64390), (137, 57340), (188, 41785), (235, 33428), (244, 32195), (274, 28670), (305, 25756), (470, 16714), (548, 14335), (610, 12878), (685, 11468), (940, 8357), (1220, 6439), (1370, 5734), (2740, 2867)]