649250450

素因数分解:

$2^1\times 5^2\times {\mathrm{61}}^1\times {\mathrm{212869}}^1$

素因数の和:212942

約数の個数: 24

約数和(自身を含む): 1227408420

約数和(自身を除く): 578157970

約数列:

[1, 2, 5, 10, 25, 50, 61, 122, 305, 610, 1525, 3050, 212869, 425738, 1064345, 2128690, 5321725, 10643450, 12985009, 25970018, 64925045, 129850090, 324625225, 649250450]

約数ペア:

[(1, 649250450), (2, 324625225), (5, 129850090), (10, 64925045), (25, 25970018), (50, 12985009), (61, 10643450), (122, 5321725), (305, 2128690), (610, 1064345), (1525, 425738), (3050, 212869)]