2688040

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{59}}^1\times {\mathrm{67}}^1$

素因数の和:154

約数の個数: 64

約数和(自身を含む): 6609600

約数和(自身を除く): 3921560

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 59, 67, 68, 85, 118, 134, 136, 170, 236, 268, 295, 335, 340, 472, 536, 590, 670, 680, 1003, 1139, 1180, 1340, 2006, 2278, 2360, 2680, 3953, 4012, 4556, 5015, 5695, 7906, 8024, 9112, 10030, 11390, 15812, 19765, 20060, 22780, 31624, 39530, 40120, 45560, 67201, 79060, 134402, 158120, 268804, 336005, 537608, 672010, 1344020, 2688040]

約数ペア:

[(1, 2688040), (2, 1344020), (4, 672010), (5, 537608), (8, 336005), (10, 268804), (17, 158120), (20, 134402), (34, 79060), (40, 67201), (59, 45560), (67, 40120), (68, 39530), (85, 31624), (118, 22780), (134, 20060), (136, 19765), (170, 15812), (236, 11390), (268, 10030), (295, 9112), (335, 8024), (340, 7906), (472, 5695), (536, 5015), (590, 4556), (670, 4012), (680, 3953), (1003, 2680), (1139, 2360), (1180, 2278), (1340, 2006)]