399477720

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{79}}^1\times {\mathrm{42139}}^1$

素因数の和:42232

約数の個数: 64

約数和(自身を含む): 1213632000

約数和(自身を除く): 814154280

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 79, 120, 158, 237, 316, 395, 474, 632, 790, 948, 1185, 1580, 1896, 2370, 3160, 4740, 9480, 42139, 84278, 126417, 168556, 210695, 252834, 337112, 421390, 505668, 632085, 842780, 1011336, 1264170, 1685560, 2528340, 3328981, 5056680, 6657962, 9986943, 13315924, 16644905, 19973886, 26631848, 33289810, 39947772, 49934715, 66579620, 79895544, 99869430, 133159240, 199738860, 399477720]

約数ペア:

[(1, 399477720), (2, 199738860), (3, 133159240), (4, 99869430), (5, 79895544), (6, 66579620), (8, 49934715), (10, 39947772), (12, 33289810), (15, 26631848), (20, 19973886), (24, 16644905), (30, 13315924), (40, 9986943), (60, 6657962), (79, 5056680), (120, 3328981), (158, 2528340), (237, 1685560), (316, 1264170), (395, 1011336), (474, 842780), (632, 632085), (790, 505668), (948, 421390), (1185, 337112), (1580, 252834), (1896, 210695), (2370, 168556), (3160, 126417), (4740, 84278), (9480, 42139)]