18449180

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{149}}^1\times {\mathrm{151}}^1$

素因数の和:350

約数の個数: 48

約数和(自身を含む): 40219200

約数和(自身を除く): 21770020

約数列:

[1, 2, 4, 5, 10, 20, 41, 82, 149, 151, 164, 205, 298, 302, 410, 596, 604, 745, 755, 820, 1490, 1510, 2980, 3020, 6109, 6191, 12218, 12382, 22499, 24436, 24764, 30545, 30955, 44998, 61090, 61910, 89996, 112495, 122180, 123820, 224990, 449980, 922459, 1844918, 3689836, 4612295, 9224590, 18449180]

約数ペア:

[(1, 18449180), (2, 9224590), (4, 4612295), (5, 3689836), (10, 1844918), (20, 922459), (41, 449980), (82, 224990), (149, 123820), (151, 122180), (164, 112495), (205, 89996), (298, 61910), (302, 61090), (410, 44998), (596, 30955), (604, 30545), (745, 24764), (755, 24436), (820, 22499), (1490, 12382), (1510, 12218), (2980, 6191), (3020, 6109)]