18674240

素因数分解:

$2^6\times 5^1\times {\mathrm{13}}^1\times {\mathrm{67}}^2$

素因数の和:164

約数の個数: 84

約数和(自身を含む): 48614076

約数和(自身を除く): 29939836

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 40, 52, 64, 65, 67, 80, 104, 130, 134, 160, 208, 260, 268, 320, 335, 416, 520, 536, 670, 832, 871, 1040, 1072, 1340, 1742, 2080, 2144, 2680, 3484, 4160, 4288, 4355, 4489, 5360, 6968, 8710, 8978, 10720, 13936, 17420, 17956, 21440, 22445, 27872, 34840, 35912, 44890, 55744, 58357, 69680, 71824, 89780, 116714, 139360, 143648, 179560, 233428, 278720, 287296, 291785, 359120, 466856, 583570, 718240, 933712, 1167140, 1436480, 1867424, 2334280, 3734848, 4668560, 9337120, 18674240]

約数ペア:

[(1, 18674240), (2, 9337120), (4, 4668560), (5, 3734848), (8, 2334280), (10, 1867424), (13, 1436480), (16, 1167140), (20, 933712), (26, 718240), (32, 583570), (40, 466856), (52, 359120), (64, 291785), (65, 287296), (67, 278720), (80, 233428), (104, 179560), (130, 143648), (134, 139360), (160, 116714), (208, 89780), (260, 71824), (268, 69680), (320, 58357), (335, 55744), (416, 44890), (520, 35912), (536, 34840), (670, 27872), (832, 22445), (871, 21440), (1040, 17956), (1072, 17420), (1340, 13936), (1742, 10720), (2080, 8978), (2144, 8710), (2680, 6968), (3484, 5360), (4160, 4489), (4288, 4355)]