3999840

素因数分解:

$2^5\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{641}}^1$

素因数の和:672

約数の個数: 96

約数和(自身を含む): 13589856

約数和(自身を除く): 9590016

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 13, 15, 16, 20, 24, 26, 30, 32, 39, 40, 48, 52, 60, 65, 78, 80, 96, 104, 120, 130, 156, 160, 195, 208, 240, 260, 312, 390, 416, 480, 520, 624, 641, 780, 1040, 1248, 1282, 1560, 1923, 2080, 2564, 3120, 3205, 3846, 5128, 6240, 6410, 7692, 8333, 9615, 10256, 12820, 15384, 16666, 19230, 20512, 24999, 25640, 30768, 33332, 38460, 41665, 49998, 51280, 61536, 66664, 76920, 83330, 99996, 102560, 124995, 133328, 153840, 166660, 199992, 249990, 266656, 307680, 333320, 399984, 499980, 666640, 799968, 999960, 1333280, 1999920, 3999840]

約数ペア:

[(1, 3999840), (2, 1999920), (3, 1333280), (4, 999960), (5, 799968), (6, 666640), (8, 499980), (10, 399984), (12, 333320), (13, 307680), (15, 266656), (16, 249990), (20, 199992), (24, 166660), (26, 153840), (30, 133328), (32, 124995), (39, 102560), (40, 99996), (48, 83330), (52, 76920), (60, 66664), (65, 61536), (78, 51280), (80, 49998), (96, 41665), (104, 38460), (120, 33332), (130, 30768), (156, 25640), (160, 24999), (195, 20512), (208, 19230), (240, 16666), (260, 15384), (312, 12820), (390, 10256), (416, 9615), (480, 8333), (520, 7692), (624, 6410), (641, 6240), (780, 5128), (1040, 3846), (1248, 3205), (1282, 3120), (1560, 2564), (1923, 2080)]