129854920

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{249721}}^1$

素因数の和:249745

約数の個数: 32

約数和(自身を含む): 314649720

約数和(自身を除く): 184794800

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 249721, 499442, 998884, 1248605, 1997768, 2497210, 3246373, 4994420, 6492746, 9988840, 12985492, 16231865, 25970984, 32463730, 64927460, 129854920]

約数ペア:

[(1, 129854920), (2, 64927460), (4, 32463730), (5, 25970984), (8, 16231865), (10, 12985492), (13, 9988840), (20, 6492746), (26, 4994420), (40, 3246373), (52, 2497210), (65, 1997768), (104, 1248605), (130, 998884), (260, 499442), (520, 249721)]