218967560

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{709}}^1\times {\mathrm{1103}}^1$

素因数の和:1830

約数の個数: 64

約数和(自身を含む): 564364800

約数和(自身を除く): 345397240

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 709, 1103, 1418, 2206, 2836, 3545, 4412, 4963, 5515, 5672, 7090, 7721, 8824, 9926, 11030, 14180, 15442, 19852, 22060, 24815, 28360, 30884, 38605, 39704, 44120, 49630, 61768, 77210, 99260, 154420, 198520, 308840, 782027, 1564054, 3128108, 3910135, 5474189, 6256216, 7820270, 10948378, 15640540, 21896756, 27370945, 31281080, 43793512, 54741890, 109483780, 218967560]

約数ペア:

[(1, 218967560), (2, 109483780), (4, 54741890), (5, 43793512), (7, 31281080), (8, 27370945), (10, 21896756), (14, 15640540), (20, 10948378), (28, 7820270), (35, 6256216), (40, 5474189), (56, 3910135), (70, 3128108), (140, 1564054), (280, 782027), (709, 308840), (1103, 198520), (1418, 154420), (2206, 99260), (2836, 77210), (3545, 61768), (4412, 49630), (4963, 44120), (5515, 39704), (5672, 38605), (7090, 30884), (7721, 28360), (8824, 24815), (9926, 22060), (11030, 19852), (14180, 15442)]