87691660

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{47}}^1\times {\mathrm{13327}}^1$

素因数の和:13390

約数の個数: 48

約数和(自身を含む): 214953984

約数和(自身を除く): 127262324

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 47, 70, 94, 140, 188, 235, 329, 470, 658, 940, 1316, 1645, 3290, 6580, 13327, 26654, 53308, 66635, 93289, 133270, 186578, 266540, 373156, 466445, 626369, 932890, 1252738, 1865780, 2505476, 3131845, 4384583, 6263690, 8769166, 12527380, 17538332, 21922915, 43845830, 87691660]

約数ペア:

[(1, 87691660), (2, 43845830), (4, 21922915), (5, 17538332), (7, 12527380), (10, 8769166), (14, 6263690), (20, 4384583), (28, 3131845), (35, 2505476), (47, 1865780), (70, 1252738), (94, 932890), (140, 626369), (188, 466445), (235, 373156), (329, 266540), (470, 186578), (658, 133270), (940, 93289), (1316, 66635), (1645, 53308), (3290, 26654), (6580, 13327)]