20130405

素因数分解:

$3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{37}}^1\times {\mathrm{83}}^1$

素因数の和:170

約数の個数: 64

約数和(自身を含む): 36771840

約数和(自身を除く): 16641435

約数列:

[1, 3, 5, 15, 19, 23, 37, 57, 69, 83, 95, 111, 115, 185, 249, 285, 345, 415, 437, 555, 703, 851, 1245, 1311, 1577, 1909, 2109, 2185, 2553, 3071, 3515, 4255, 4731, 5727, 6555, 7885, 9213, 9545, 10545, 12765, 15355, 16169, 23655, 28635, 36271, 46065, 48507, 58349, 70633, 80845, 108813, 175047, 181355, 211899, 242535, 291745, 353165, 544065, 875235, 1059495, 1342027, 4026081, 6710135, 20130405]

約数ペア:

[(1, 20130405), (3, 6710135), (5, 4026081), (15, 1342027), (19, 1059495), (23, 875235), (37, 544065), (57, 353165), (69, 291745), (83, 242535), (95, 211899), (111, 181355), (115, 175047), (185, 108813), (249, 80845), (285, 70633), (345, 58349), (415, 48507), (437, 46065), (555, 36271), (703, 28635), (851, 23655), (1245, 16169), (1311, 15355), (1577, 12765), (1909, 10545), (2109, 9545), (2185, 9213), (2553, 7885), (3071, 6555), (3515, 5727), (4255, 4731)]