28887770

素因数分解:

$2^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{29}}^1\times {\mathrm{61}}^1\times {\mathrm{71}}^1$

素因数の和:191

約数の個数: 64

約数和(自身を含む): 57853440

約数和(自身を除く): 28965670

約数列:

[1, 2, 5, 10, 23, 29, 46, 58, 61, 71, 115, 122, 142, 145, 230, 290, 305, 355, 610, 667, 710, 1334, 1403, 1633, 1769, 2059, 2806, 3266, 3335, 3538, 4118, 4331, 6670, 7015, 8165, 8662, 8845, 10295, 14030, 16330, 17690, 20590, 21655, 40687, 43310, 47357, 81374, 94714, 99613, 125599, 199226, 203435, 236785, 251198, 406870, 473570, 498065, 627995, 996130, 1255990, 2888777, 5777554, 14443885, 28887770]

約数ペア:

[(1, 28887770), (2, 14443885), (5, 5777554), (10, 2888777), (23, 1255990), (29, 996130), (46, 627995), (58, 498065), (61, 473570), (71, 406870), (115, 251198), (122, 236785), (142, 203435), (145, 199226), (230, 125599), (290, 99613), (305, 94714), (355, 81374), (610, 47357), (667, 43310), (710, 40687), (1334, 21655), (1403, 20590), (1633, 17690), (1769, 16330), (2059, 14030), (2806, 10295), (3266, 8845), (3335, 8662), (3538, 8165), (4118, 7015), (4331, 6670)]