28370480

素因数分解:

$2^4\times 5^1\times {\mathrm{67}}^2\times {\mathrm{79}}^1$

素因数の和:226

約数の個数: 60

約数和(自身を含む): 67808160

約数和(自身を除く): 39437680

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 67, 79, 80, 134, 158, 268, 316, 335, 395, 536, 632, 670, 790, 1072, 1264, 1340, 1580, 2680, 3160, 4489, 5293, 5360, 6320, 8978, 10586, 17956, 21172, 22445, 26465, 35912, 42344, 44890, 52930, 71824, 84688, 89780, 105860, 179560, 211720, 354631, 359120, 423440, 709262, 1418524, 1773155, 2837048, 3546310, 5674096, 7092620, 14185240, 28370480]

約数ペア:

[(1, 28370480), (2, 14185240), (4, 7092620), (5, 5674096), (8, 3546310), (10, 2837048), (16, 1773155), (20, 1418524), (40, 709262), (67, 423440), (79, 359120), (80, 354631), (134, 211720), (158, 179560), (268, 105860), (316, 89780), (335, 84688), (395, 71824), (536, 52930), (632, 44890), (670, 42344), (790, 35912), (1072, 26465), (1264, 22445), (1340, 21172), (1580, 17956), (2680, 10586), (3160, 8978), (4489, 6320), (5293, 5360)]