17210980

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{139}}^1\times {\mathrm{151}}^1$

素因数の和:340

約数の個数: 48

約数和(自身を含む): 37537920

約数和(自身を除く): 20326940

約数列:

[1, 2, 4, 5, 10, 20, 41, 82, 139, 151, 164, 205, 278, 302, 410, 556, 604, 695, 755, 820, 1390, 1510, 2780, 3020, 5699, 6191, 11398, 12382, 20989, 22796, 24764, 28495, 30955, 41978, 56990, 61910, 83956, 104945, 113980, 123820, 209890, 419780, 860549, 1721098, 3442196, 4302745, 8605490, 17210980]

約数ペア:

[(1, 17210980), (2, 8605490), (4, 4302745), (5, 3442196), (10, 1721098), (20, 860549), (41, 419780), (82, 209890), (139, 123820), (151, 113980), (164, 104945), (205, 83956), (278, 61910), (302, 56990), (410, 41978), (556, 30955), (604, 28495), (695, 24764), (755, 22796), (820, 20989), (1390, 12382), (1510, 11398), (2780, 6191), (3020, 5699)]