28974040

素因数分解:

$2^3\times 5^1\times {\mathrm{53}}^1\times {\mathrm{79}}^1\times {\mathrm{173}}^1$

素因数の和:316

約数の個数: 64

約数和(自身を含む): 67651200

約数和(自身を除く): 38677160

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 53, 79, 106, 158, 173, 212, 265, 316, 346, 395, 424, 530, 632, 692, 790, 865, 1060, 1384, 1580, 1730, 2120, 3160, 3460, 4187, 6920, 8374, 9169, 13667, 16748, 18338, 20935, 27334, 33496, 36676, 41870, 45845, 54668, 68335, 73352, 83740, 91690, 109336, 136670, 167480, 183380, 273340, 366760, 546680, 724351, 1448702, 2897404, 3621755, 5794808, 7243510, 14487020, 28974040]

約数ペア:

[(1, 28974040), (2, 14487020), (4, 7243510), (5, 5794808), (8, 3621755), (10, 2897404), (20, 1448702), (40, 724351), (53, 546680), (79, 366760), (106, 273340), (158, 183380), (173, 167480), (212, 136670), (265, 109336), (316, 91690), (346, 83740), (395, 73352), (424, 68335), (530, 54668), (632, 45845), (692, 41870), (790, 36676), (865, 33496), (1060, 27334), (1384, 20935), (1580, 18338), (1730, 16748), (2120, 13667), (3160, 9169), (3460, 8374), (4187, 6920)]