198838120

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{83}}^1\times {\mathrm{271}}^1$

素因数の和:395

約数の個数: 128

約数和(自身を含む): 518192640

約数和(自身を除く): 319354520

約数列:

[1, 2, 4, 5, 8, 10, 13, 17, 20, 26, 34, 40, 52, 65, 68, 83, 85, 104, 130, 136, 166, 170, 221, 260, 271, 332, 340, 415, 442, 520, 542, 664, 680, 830, 884, 1079, 1084, 1105, 1355, 1411, 1660, 1768, 2158, 2168, 2210, 2710, 2822, 3320, 3523, 4316, 4420, 4607, 5395, 5420, 5644, 7046, 7055, 8632, 8840, 9214, 10790, 10840, 11288, 14092, 14110, 17615, 18343, 18428, 21580, 22493, 23035, 28184, 28220, 35230, 36686, 36856, 43160, 44986, 46070, 56440, 59891, 70460, 73372, 89972, 91715, 92140, 112465, 119782, 140920, 146744, 179944, 183430, 184280, 224930, 239564, 292409, 299455, 366860, 382381, 449860, 479128, 584818, 598910, 733720, 764762, 899720, 1169636, 1197820, 1462045, 1529524, 1911905, 2339272, 2395640, 2924090, 3059048, 3823810, 4970953, 5848180, 7647620, 9941906, 11696360, 15295240, 19883812, 24854765, 39767624, 49709530, 99419060, 198838120]

約数ペア:

[(1, 198838120), (2, 99419060), (4, 49709530), (5, 39767624), (8, 24854765), (10, 19883812), (13, 15295240), (17, 11696360), (20, 9941906), (26, 7647620), (34, 5848180), (40, 4970953), (52, 3823810), (65, 3059048), (68, 2924090), (83, 2395640), (85, 2339272), (104, 1911905), (130, 1529524), (136, 1462045), (166, 1197820), (170, 1169636), (221, 899720), (260, 764762), (271, 733720), (332, 598910), (340, 584818), (415, 479128), (442, 449860), (520, 382381), (542, 366860), (664, 299455), (680, 292409), (830, 239564), (884, 224930), (1079, 184280), (1084, 183430), (1105, 179944), (1355, 146744), (1411, 140920), (1660, 119782), (1768, 112465), (2158, 92140), (2168, 91715), (2210, 89972), (2710, 73372), (2822, 70460), (3320, 59891), (3523, 56440), (4316, 46070), (4420, 44986), (4607, 43160), (5395, 36856), (5420, 36686), (5644, 35230), (7046, 28220), (7055, 28184), (8632, 23035), (8840, 22493), (9214, 21580), (10790, 18428), (10840, 18343), (11288, 17615), (14092, 14110)]