31381740

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{13411}}^1$

素因数の和:13439

約数の個数: 72

約数和(自身を含む): 102521328

約数和(自身を除く): 71139588

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 13, 15, 18, 20, 26, 30, 36, 39, 45, 52, 60, 65, 78, 90, 117, 130, 156, 180, 195, 234, 260, 390, 468, 585, 780, 1170, 2340, 13411, 26822, 40233, 53644, 67055, 80466, 120699, 134110, 160932, 174343, 201165, 241398, 268220, 348686, 402330, 482796, 523029, 603495, 697372, 804660, 871715, 1046058, 1206990, 1569087, 1743430, 2092116, 2413980, 2615145, 3138174, 3486860, 5230290, 6276348, 7845435, 10460580, 15690870, 31381740]

約数ペア:

[(1, 31381740), (2, 15690870), (3, 10460580), (4, 7845435), (5, 6276348), (6, 5230290), (9, 3486860), (10, 3138174), (12, 2615145), (13, 2413980), (15, 2092116), (18, 1743430), (20, 1569087), (26, 1206990), (30, 1046058), (36, 871715), (39, 804660), (45, 697372), (52, 603495), (60, 523029), (65, 482796), (78, 402330), (90, 348686), (117, 268220), (130, 241398), (156, 201165), (180, 174343), (195, 160932), (234, 134110), (260, 120699), (390, 80466), (468, 67055), (585, 53644), (780, 40233), (1170, 26822), (2340, 13411)]