87761660

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{421}}^1\times {\mathrm{1489}}^1$

素因数の和:1926

約数の個数: 48

約数和(自身を含む): 211270080

約数和(自身を除く): 123508420

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 421, 842, 1489, 1684, 2105, 2947, 2978, 4210, 5894, 5956, 7445, 8420, 10423, 11788, 14735, 14890, 20846, 29470, 29780, 41692, 52115, 58940, 104230, 208460, 626869, 1253738, 2507476, 3134345, 4388083, 6268690, 8776166, 12537380, 17552332, 21940415, 43880830, 87761660]

約数ペア:

[(1, 87761660), (2, 43880830), (4, 21940415), (5, 17552332), (7, 12537380), (10, 8776166), (14, 6268690), (20, 4388083), (28, 3134345), (35, 2507476), (70, 1253738), (140, 626869), (421, 208460), (842, 104230), (1489, 58940), (1684, 52115), (2105, 41692), (2947, 29780), (2978, 29470), (4210, 20846), (5894, 14890), (5956, 14735), (7445, 11788), (8420, 10423)]