72651280

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{69857}}^1$

素因数の和:69883

約数の個数: 40

約数和(自身を含む): 181910232

約数和(自身を除く): 109258952

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 130, 208, 260, 520, 1040, 69857, 139714, 279428, 349285, 558856, 698570, 908141, 1117712, 1397140, 1816282, 2794280, 3632564, 4540705, 5588560, 7265128, 9081410, 14530256, 18162820, 36325640, 72651280]

約数ペア:

[(1, 72651280), (2, 36325640), (4, 18162820), (5, 14530256), (8, 9081410), (10, 7265128), (13, 5588560), (16, 4540705), (20, 3632564), (26, 2794280), (40, 1816282), (52, 1397140), (65, 1117712), (80, 908141), (104, 698570), (130, 558856), (208, 349285), (260, 279428), (520, 139714), (1040, 69857)]