31345340

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{3889}}^1$

素因数の和:3942

約数の個数: 48

約数和(自身を含む): 73194240

約数和(自身を除く): 41848900

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 31, 52, 62, 65, 124, 130, 155, 260, 310, 403, 620, 806, 1612, 2015, 3889, 4030, 7778, 8060, 15556, 19445, 38890, 50557, 77780, 101114, 120559, 202228, 241118, 252785, 482236, 505570, 602795, 1011140, 1205590, 1567267, 2411180, 3134534, 6269068, 7836335, 15672670, 31345340]

約数ペア:

[(1, 31345340), (2, 15672670), (4, 7836335), (5, 6269068), (10, 3134534), (13, 2411180), (20, 1567267), (26, 1205590), (31, 1011140), (52, 602795), (62, 505570), (65, 482236), (124, 252785), (130, 241118), (155, 202228), (260, 120559), (310, 101114), (403, 77780), (620, 50557), (806, 38890), (1612, 19445), (2015, 15556), (3889, 8060), (4030, 7778)]