278345943640

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{47}}^1\times {\mathrm{3443171}}^1$

素因数の和:3443272

約数の個数: 64

約数和(自身を含む): 654478133760

約数和(自身を除く): 376132190120

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 47, 86, 94, 172, 188, 215, 235, 344, 376, 430, 470, 860, 940, 1720, 1880, 2021, 4042, 8084, 10105, 16168, 20210, 40420, 80840, 3443171, 6886342, 13772684, 17215855, 27545368, 34431710, 68863420, 137726840, 148056353, 161829037, 296112706, 323658074, 592225412, 647316148, 740281765, 809145185, 1184450824, 1294632296, 1480563530, 1618290370, 2961127060, 3236580740, 5922254120, 6473161480, 6958648591, 13917297182, 27834594364, 34793242955, 55669188728, 69586485910, 139172971820, 278345943640]

約数ペア:

[(1, 278345943640), (2, 139172971820), (4, 69586485910), (5, 55669188728), (8, 34793242955), (10, 27834594364), (20, 13917297182), (40, 6958648591), (43, 6473161480), (47, 5922254120), (86, 3236580740), (94, 2961127060), (172, 1618290370), (188, 1480563530), (215, 1294632296), (235, 1184450824), (344, 809145185), (376, 740281765), (430, 647316148), (470, 592225412), (860, 323658074), (940, 296112706), (1720, 161829037), (1880, 148056353), (2021, 137726840), (4042, 68863420), (8084, 34431710), (10105, 27545368), (16168, 17215855), (20210, 13772684), (40420, 6886342), (80840, 3443171)]