8440040

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{43}}^1\times {\mathrm{701}}^1$

素因数の和:762

約数の個数: 64

約数和(自身を含む): 22239360

約数和(自身を除く): 13799320

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 43, 56, 70, 86, 140, 172, 215, 280, 301, 344, 430, 602, 701, 860, 1204, 1402, 1505, 1720, 2408, 2804, 3010, 3505, 4907, 5608, 6020, 7010, 9814, 12040, 14020, 19628, 24535, 28040, 30143, 39256, 49070, 60286, 98140, 120572, 150715, 196280, 211001, 241144, 301430, 422002, 602860, 844004, 1055005, 1205720, 1688008, 2110010, 4220020, 8440040]

約数ペア:

[(1, 8440040), (2, 4220020), (4, 2110010), (5, 1688008), (7, 1205720), (8, 1055005), (10, 844004), (14, 602860), (20, 422002), (28, 301430), (35, 241144), (40, 211001), (43, 196280), (56, 150715), (70, 120572), (86, 98140), (140, 60286), (172, 49070), (215, 39256), (280, 30143), (301, 28040), (344, 24535), (430, 19628), (602, 14020), (701, 12040), (860, 9814), (1204, 7010), (1402, 6020), (1505, 5608), (1720, 4907), (2408, 3505), (2804, 3010)]