421472840

素因数分解:

$2^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{619813}}^1$

素因数の和:619841

約数の個数: 32

約数和(自身を含む): 1004098680

約数和(自身を除く): 582625840

約数列:

[1, 2, 4, 5, 8, 10, 17, 20, 34, 40, 68, 85, 136, 170, 340, 680, 619813, 1239626, 2479252, 3099065, 4958504, 6198130, 10536821, 12396260, 21073642, 24792520, 42147284, 52684105, 84294568, 105368210, 210736420, 421472840]

約数ペア:

[(1, 421472840), (2, 210736420), (4, 105368210), (5, 84294568), (8, 52684105), (10, 42147284), (17, 24792520), (20, 21073642), (34, 12396260), (40, 10536821), (68, 6198130), (85, 4958504), (136, 3099065), (170, 2479252), (340, 1239626), (680, 619813)]