77881420

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{157}}^1\times {\mathrm{1459}}^1$

素因数の和:1642

約数の個数: 48

約数和(自身を含む): 174394080

約数和(自身を除く): 96512660

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 157, 170, 314, 340, 628, 785, 1459, 1570, 2669, 2918, 3140, 5338, 5836, 7295, 10676, 13345, 14590, 24803, 26690, 29180, 49606, 53380, 99212, 124015, 229063, 248030, 458126, 496060, 916252, 1145315, 2290630, 3894071, 4581260, 7788142, 15576284, 19470355, 38940710, 77881420]

約数ペア:

[(1, 77881420), (2, 38940710), (4, 19470355), (5, 15576284), (10, 7788142), (17, 4581260), (20, 3894071), (34, 2290630), (68, 1145315), (85, 916252), (157, 496060), (170, 458126), (314, 248030), (340, 229063), (628, 124015), (785, 99212), (1459, 53380), (1570, 49606), (2669, 29180), (2918, 26690), (3140, 24803), (5338, 14590), (5836, 13345), (7295, 10676)]