8422840

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{59}}^1\times {\mathrm{83}}^1$

素因数の和:196

約数の個数: 64

約数和(自身を含む): 19958400

約数和(自身を除く): 11535560

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 59, 83, 86, 118, 166, 172, 215, 236, 295, 332, 344, 415, 430, 472, 590, 664, 830, 860, 1180, 1660, 1720, 2360, 2537, 3320, 3569, 4897, 5074, 7138, 9794, 10148, 12685, 14276, 17845, 19588, 20296, 24485, 25370, 28552, 35690, 39176, 48970, 50740, 71380, 97940, 101480, 142760, 195880, 210571, 421142, 842284, 1052855, 1684568, 2105710, 4211420, 8422840]

約数ペア:

[(1, 8422840), (2, 4211420), (4, 2105710), (5, 1684568), (8, 1052855), (10, 842284), (20, 421142), (40, 210571), (43, 195880), (59, 142760), (83, 101480), (86, 97940), (118, 71380), (166, 50740), (172, 48970), (215, 39176), (236, 35690), (295, 28552), (332, 25370), (344, 24485), (415, 20296), (430, 19588), (472, 17845), (590, 14276), (664, 12685), (830, 10148), (860, 9794), (1180, 7138), (1660, 5074), (1720, 4897), (2360, 3569), (2537, 3320)]