19242640

素因数分解:

$2^4\times 5^1\times {\mathrm{17}}^1\times {\mathrm{14149}}^1$

素因数の和:14179

約数の個数: 40

約数和(自身を含む): 47374200

約数和(自身を除く): 28131560

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 34, 40, 68, 80, 85, 136, 170, 272, 340, 680, 1360, 14149, 28298, 56596, 70745, 113192, 141490, 226384, 240533, 282980, 481066, 565960, 962132, 1131920, 1202665, 1924264, 2405330, 3848528, 4810660, 9621320, 19242640]

約数ペア:

[(1, 19242640), (2, 9621320), (4, 4810660), (5, 3848528), (8, 2405330), (10, 1924264), (16, 1202665), (17, 1131920), (20, 962132), (34, 565960), (40, 481066), (68, 282980), (80, 240533), (85, 226384), (136, 141490), (170, 113192), (272, 70745), (340, 56596), (680, 28298), (1360, 14149)]