18151999060

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{79}}^1\times {\mathrm{883739}}^1$

素因数の和:883840

約数の個数: 48

約数和(自身を含む): 41571129600

約数和(自身を除く): 23419130540

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 79, 130, 158, 260, 316, 395, 790, 1027, 1580, 2054, 4108, 5135, 10270, 20540, 883739, 1767478, 3534956, 4418695, 8837390, 11488607, 17674780, 22977214, 45954428, 57443035, 69815381, 114886070, 139630762, 229772140, 279261524, 349076905, 698153810, 907599953, 1396307620, 1815199906, 3630399812, 4537999765, 9075999530, 18151999060]

約数ペア:

[(1, 18151999060), (2, 9075999530), (4, 4537999765), (5, 3630399812), (10, 1815199906), (13, 1396307620), (20, 907599953), (26, 698153810), (52, 349076905), (65, 279261524), (79, 229772140), (130, 139630762), (158, 114886070), (260, 69815381), (316, 57443035), (395, 45954428), (790, 22977214), (1027, 17674780), (1580, 11488607), (2054, 8837390), (4108, 4418695), (5135, 3534956), (10270, 1767478), (20540, 883739)]