90070120

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{321679}}^1$

素因数の和:321697

約数の個数: 32

約数和(自身を含む): 231609600

約数和(自身を除く): 141539480

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 321679, 643358, 1286716, 1608395, 2251753, 2573432, 3216790, 4503506, 6433580, 9007012, 11258765, 12867160, 18014024, 22517530, 45035060, 90070120]

約数ペア:

[(1, 90070120), (2, 45035060), (4, 22517530), (5, 18014024), (7, 12867160), (8, 11258765), (10, 9007012), (14, 6433580), (20, 4503506), (28, 3216790), (35, 2573432), (40, 2251753), (56, 1608395), (70, 1286716), (140, 643358), (280, 321679)]