72445520

素因数分解:

$2^4\times 5^1\times 7^2\times {\mathrm{18481}}^1$

素因数の和:18508

約数の個数: 60

約数和(自身を含む): 195946164

約数和(自身を除く): 123500644

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 49, 56, 70, 80, 98, 112, 140, 196, 245, 280, 392, 490, 560, 784, 980, 1960, 3920, 18481, 36962, 73924, 92405, 129367, 147848, 184810, 258734, 295696, 369620, 517468, 646835, 739240, 905569, 1034936, 1293670, 1478480, 1811138, 2069872, 2587340, 3622276, 4527845, 5174680, 7244552, 9055690, 10349360, 14489104, 18111380, 36222760, 72445520]

約数ペア:

[(1, 72445520), (2, 36222760), (4, 18111380), (5, 14489104), (7, 10349360), (8, 9055690), (10, 7244552), (14, 5174680), (16, 4527845), (20, 3622276), (28, 2587340), (35, 2069872), (40, 1811138), (49, 1478480), (56, 1293670), (70, 1034936), (80, 905569), (98, 739240), (112, 646835), (140, 517468), (196, 369620), (245, 295696), (280, 258734), (392, 184810), (490, 147848), (560, 129367), (784, 92405), (980, 73924), (1960, 36962), (3920, 18481)]