215823880

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{179}}^1\times {\mathrm{701}}^1$

素因数の和:934

約数の個数: 64

約数和(自身を含む): 500385600

約数和(自身を除く): 284561720

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 86, 172, 179, 215, 344, 358, 430, 701, 716, 860, 895, 1402, 1432, 1720, 1790, 2804, 3505, 3580, 5608, 7010, 7160, 7697, 14020, 15394, 28040, 30143, 30788, 38485, 60286, 61576, 76970, 120572, 125479, 150715, 153940, 241144, 250958, 301430, 307880, 501916, 602860, 627395, 1003832, 1205720, 1254790, 2509580, 5019160, 5395597, 10791194, 21582388, 26977985, 43164776, 53955970, 107911940, 215823880]

約数ペア:

[(1, 215823880), (2, 107911940), (4, 53955970), (5, 43164776), (8, 26977985), (10, 21582388), (20, 10791194), (40, 5395597), (43, 5019160), (86, 2509580), (172, 1254790), (179, 1205720), (215, 1003832), (344, 627395), (358, 602860), (430, 501916), (701, 307880), (716, 301430), (860, 250958), (895, 241144), (1402, 153940), (1432, 150715), (1720, 125479), (1790, 120572), (2804, 76970), (3505, 61576), (3580, 60286), (5608, 38485), (7010, 30788), (7160, 30143), (7697, 28040), (14020, 15394)]