1819580

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{41}}^1\times {\mathrm{317}}^1$

素因数の和:374

約数の個数: 48

約数和(自身を含む): 4487616

約数和(自身を除く): 2668036

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 41, 70, 82, 140, 164, 205, 287, 317, 410, 574, 634, 820, 1148, 1268, 1435, 1585, 2219, 2870, 3170, 4438, 5740, 6340, 8876, 11095, 12997, 22190, 25994, 44380, 51988, 64985, 90979, 129970, 181958, 259940, 363916, 454895, 909790, 1819580]

約数ペア:

[(1, 1819580), (2, 909790), (4, 454895), (5, 363916), (7, 259940), (10, 181958), (14, 129970), (20, 90979), (28, 64985), (35, 51988), (41, 44380), (70, 25994), (82, 22190), (140, 12997), (164, 11095), (205, 8876), (287, 6340), (317, 5740), (410, 4438), (574, 3170), (634, 2870), (820, 2219), (1148, 1585), (1268, 1435)]