18191820

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{47}}^1\times {\mathrm{6451}}^1$

素因数の和:6510

約数の個数: 48

約数和(自身を含む): 52028928

約数和(自身を除く): 33837108

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 47, 60, 94, 141, 188, 235, 282, 470, 564, 705, 940, 1410, 2820, 6451, 12902, 19353, 25804, 32255, 38706, 64510, 77412, 96765, 129020, 193530, 303197, 387060, 606394, 909591, 1212788, 1515985, 1819182, 3031970, 3638364, 4547955, 6063940, 9095910, 18191820]

約数ペア:

[(1, 18191820), (2, 9095910), (3, 6063940), (4, 4547955), (5, 3638364), (6, 3031970), (10, 1819182), (12, 1515985), (15, 1212788), (20, 909591), (30, 606394), (47, 387060), (60, 303197), (94, 193530), (141, 129020), (188, 96765), (235, 77412), (282, 64510), (470, 38706), (564, 32255), (705, 25804), (940, 19353), (1410, 12902), (2820, 6451)]