51798580

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{181}}^1\times {\mathrm{349}}^1$

素因数の和:580

約数の個数: 48

約数和(自身を含む): 112366800

約数和(自身を除く): 60568220

約数列:

[1, 2, 4, 5, 10, 20, 41, 82, 164, 181, 205, 349, 362, 410, 698, 724, 820, 905, 1396, 1745, 1810, 3490, 3620, 6980, 7421, 14309, 14842, 28618, 29684, 37105, 57236, 63169, 71545, 74210, 126338, 143090, 148420, 252676, 286180, 315845, 631690, 1263380, 2589929, 5179858, 10359716, 12949645, 25899290, 51798580]

約数ペア:

[(1, 51798580), (2, 25899290), (4, 12949645), (5, 10359716), (10, 5179858), (20, 2589929), (41, 1263380), (82, 631690), (164, 315845), (181, 286180), (205, 252676), (349, 148420), (362, 143090), (410, 126338), (698, 74210), (724, 71545), (820, 63169), (905, 57236), (1396, 37105), (1745, 29684), (1810, 28618), (3490, 14842), (3620, 14309), (6980, 7421)]