18999430

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^3\times {\mathrm{277}}^1$

素因数の和:341

約数の個数: 32

約数和(自身を含む): 36228960

約数和(自身を除く): 17229530

約数列:

[1, 2, 5, 10, 19, 38, 95, 190, 277, 361, 554, 722, 1385, 1805, 2770, 3610, 5263, 6859, 10526, 13718, 26315, 34295, 52630, 68590, 99997, 199994, 499985, 999970, 1899943, 3799886, 9499715, 18999430]

約数ペア:

[(1, 18999430), (2, 9499715), (5, 3799886), (10, 1899943), (19, 999970), (38, 499985), (95, 199994), (190, 99997), (277, 68590), (361, 52630), (554, 34295), (722, 26315), (1385, 13718), (1805, 10526), (2770, 6859), (3610, 5263)]