637211235

素因数分解:

$3^1\times 5^1\times {\mathrm{79}}^1\times {\mathrm{269}}^1\times {\mathrm{1999}}^1$

素因数の和:2355

約数の個数: 32

約数和(自身を含む): 1036800000

約数和(自身を除く): 399588765

約数列:

[1, 3, 5, 15, 79, 237, 269, 395, 807, 1185, 1345, 1999, 4035, 5997, 9995, 21251, 29985, 63753, 106255, 157921, 318765, 473763, 537731, 789605, 1613193, 2368815, 2688655, 8065965, 42480749, 127442247, 212403745, 637211235]

約数ペア:

[(1, 637211235), (3, 212403745), (5, 127442247), (15, 42480749), (79, 8065965), (237, 2688655), (269, 2368815), (395, 1613193), (807, 789605), (1185, 537731), (1345, 473763), (1999, 318765), (4035, 157921), (5997, 106255), (9995, 63753), (21251, 29985)]