71668980

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{631}}^2$

素因数の和:1277

約数の個数: 54

約数和(自身を含む): 217740978

約数和(自身を除く): 146071998

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 631, 1262, 1893, 2524, 3155, 3786, 5679, 6310, 7572, 9465, 11358, 12620, 18930, 22716, 28395, 37860, 56790, 113580, 398161, 796322, 1194483, 1592644, 1990805, 2388966, 3583449, 3981610, 4777932, 5972415, 7166898, 7963220, 11944830, 14333796, 17917245, 23889660, 35834490, 71668980]

約数ペア:

[(1, 71668980), (2, 35834490), (3, 23889660), (4, 17917245), (5, 14333796), (6, 11944830), (9, 7963220), (10, 7166898), (12, 5972415), (15, 4777932), (18, 3981610), (20, 3583449), (30, 2388966), (36, 1990805), (45, 1592644), (60, 1194483), (90, 796322), (180, 398161), (631, 113580), (1262, 56790), (1893, 37860), (2524, 28395), (3155, 22716), (3786, 18930), (5679, 12620), (6310, 11358), (7572, 9465)]