20865210

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{29}}^2\times {\mathrm{827}}^1$

素因数の和:895

約数の個数: 48

約数和(自身を含む): 51925536

約数和(自身を除く): 31060326

約数列:

[1, 2, 3, 5, 6, 10, 15, 29, 30, 58, 87, 145, 174, 290, 435, 827, 841, 870, 1654, 1682, 2481, 2523, 4135, 4205, 4962, 5046, 8270, 8410, 12405, 12615, 23983, 24810, 25230, 47966, 71949, 119915, 143898, 239830, 359745, 695507, 719490, 1391014, 2086521, 3477535, 4173042, 6955070, 10432605, 20865210]

約数ペア:

[(1, 20865210), (2, 10432605), (3, 6955070), (5, 4173042), (6, 3477535), (10, 2086521), (15, 1391014), (29, 719490), (30, 695507), (58, 359745), (87, 239830), (145, 143898), (174, 119915), (290, 71949), (435, 47966), (827, 25230), (841, 24810), (870, 23983), (1654, 12615), (1682, 12405), (2481, 8410), (2523, 8270), (4135, 5046), (4205, 4962)]