40464320

素因数分解:

$2^6\times 5^1\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{137}}^1$

素因数の和:238

約数の個数: 112

約数和(自身を含む): 105997248

約数和(自身を除く): 65532928

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 40, 52, 64, 65, 71, 80, 104, 130, 137, 142, 160, 208, 260, 274, 284, 320, 355, 416, 520, 548, 568, 685, 710, 832, 923, 1040, 1096, 1136, 1370, 1420, 1781, 1846, 2080, 2192, 2272, 2740, 2840, 3562, 3692, 4160, 4384, 4544, 4615, 5480, 5680, 7124, 7384, 8768, 8905, 9230, 9727, 10960, 11360, 14248, 14768, 17810, 18460, 19454, 21920, 22720, 28496, 29536, 35620, 36920, 38908, 43840, 48635, 56992, 59072, 71240, 73840, 77816, 97270, 113984, 126451, 142480, 147680, 155632, 194540, 252902, 284960, 295360, 311264, 389080, 505804, 569920, 622528, 632255, 778160, 1011608, 1264510, 1556320, 2023216, 2529020, 3112640, 4046432, 5058040, 8092864, 10116080, 20232160, 40464320]

約数ペア:

[(1, 40464320), (2, 20232160), (4, 10116080), (5, 8092864), (8, 5058040), (10, 4046432), (13, 3112640), (16, 2529020), (20, 2023216), (26, 1556320), (32, 1264510), (40, 1011608), (52, 778160), (64, 632255), (65, 622528), (71, 569920), (80, 505804), (104, 389080), (130, 311264), (137, 295360), (142, 284960), (160, 252902), (208, 194540), (260, 155632), (274, 147680), (284, 142480), (320, 126451), (355, 113984), (416, 97270), (520, 77816), (548, 73840), (568, 71240), (685, 59072), (710, 56992), (832, 48635), (923, 43840), (1040, 38908), (1096, 36920), (1136, 35620), (1370, 29536), (1420, 28496), (1781, 22720), (1846, 21920), (2080, 19454), (2192, 18460), (2272, 17810), (2740, 14768), (2840, 14248), (3562, 11360), (3692, 10960), (4160, 9727), (4384, 9230), (4544, 8905), (4615, 8768), (5480, 7384), (5680, 7124)]