154908890

素因数分解:

$2^1\times 5^1\times {\mathrm{61}}^1\times {\mathrm{253949}}^1$

素因数の和:254017

約数の個数: 16

約数和(自身を含む): 283408200

約数和(自身を除く): 128499310

約数列:

[1, 2, 5, 10, 61, 122, 305, 610, 253949, 507898, 1269745, 2539490, 15490889, 30981778, 77454445, 154908890]

約数ペア:

[(1, 154908890), (2, 77454445), (5, 30981778), (10, 15490889), (61, 2539490), (122, 1269745), (305, 507898), (610, 253949)]