18683816

素因数分解:

$2^3\times {\mathrm{17}}^1\times {\mathrm{37}}^1\times {\mathrm{47}}^1\times {\mathrm{79}}^1$

素因数の和:186

約数の個数: 64

約数和(自身を含む): 39398400

約数和(自身を除く): 20714584

約数列:

[1, 2, 4, 8, 17, 34, 37, 47, 68, 74, 79, 94, 136, 148, 158, 188, 296, 316, 376, 629, 632, 799, 1258, 1343, 1598, 1739, 2516, 2686, 2923, 3196, 3478, 3713, 5032, 5372, 5846, 6392, 6956, 7426, 10744, 11692, 13912, 14852, 23384, 29563, 29704, 49691, 59126, 63121, 99382, 118252, 126242, 137381, 198764, 236504, 252484, 274762, 397528, 504968, 549524, 1099048, 2335477, 4670954, 9341908, 18683816]

約数ペア:

[(1, 18683816), (2, 9341908), (4, 4670954), (8, 2335477), (17, 1099048), (34, 549524), (37, 504968), (47, 397528), (68, 274762), (74, 252484), (79, 236504), (94, 198764), (136, 137381), (148, 126242), (158, 118252), (188, 99382), (296, 63121), (316, 59126), (376, 49691), (629, 29704), (632, 29563), (799, 23384), (1258, 14852), (1343, 13912), (1598, 11692), (1739, 10744), (2516, 7426), (2686, 6956), (2923, 6392), (3196, 5846), (3478, 5372), (3713, 5032)]