18918120

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{67}}^1\times {\mathrm{181}}^1$

素因数の和:275

約数の個数: 128

約数和(自身を含む): 62375040

約数和(自身を除く): 43456920

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 20, 24, 26, 30, 39, 40, 52, 60, 65, 67, 78, 104, 120, 130, 134, 156, 181, 195, 201, 260, 268, 312, 335, 362, 390, 402, 520, 536, 543, 670, 724, 780, 804, 871, 905, 1005, 1086, 1340, 1448, 1560, 1608, 1742, 1810, 2010, 2172, 2353, 2613, 2680, 2715, 3484, 3620, 4020, 4344, 4355, 4706, 5226, 5430, 6968, 7059, 7240, 8040, 8710, 9412, 10452, 10860, 11765, 12127, 13065, 14118, 17420, 18824, 20904, 21720, 23530, 24254, 26130, 28236, 34840, 35295, 36381, 47060, 48508, 52260, 56472, 60635, 70590, 72762, 94120, 97016, 104520, 121270, 141180, 145524, 157651, 181905, 242540, 282360, 291048, 315302, 363810, 472953, 485080, 630604, 727620, 788255, 945906, 1261208, 1455240, 1576510, 1891812, 2364765, 3153020, 3783624, 4729530, 6306040, 9459060, 18918120]

約数ペア:

[(1, 18918120), (2, 9459060), (3, 6306040), (4, 4729530), (5, 3783624), (6, 3153020), (8, 2364765), (10, 1891812), (12, 1576510), (13, 1455240), (15, 1261208), (20, 945906), (24, 788255), (26, 727620), (30, 630604), (39, 485080), (40, 472953), (52, 363810), (60, 315302), (65, 291048), (67, 282360), (78, 242540), (104, 181905), (120, 157651), (130, 145524), (134, 141180), (156, 121270), (181, 104520), (195, 97016), (201, 94120), (260, 72762), (268, 70590), (312, 60635), (335, 56472), (362, 52260), (390, 48508), (402, 47060), (520, 36381), (536, 35295), (543, 34840), (670, 28236), (724, 26130), (780, 24254), (804, 23530), (871, 21720), (905, 20904), (1005, 18824), (1086, 17420), (1340, 14118), (1448, 13065), (1560, 12127), (1608, 11765), (1742, 10860), (1810, 10452), (2010, 9412), (2172, 8710), (2353, 8040), (2613, 7240), (2680, 7059), (2715, 6968), (3484, 5430), (3620, 5226), (4020, 4706), (4344, 4355)]