398421376

素因数分解:

$2^7\times {\mathrm{3112667}}^1$

素因数の和:3112681

約数の個数: 16

約数和(自身を含む): 793730340

約数和(自身を除く): 395308964

約数列:

[1, 2, 4, 8, 16, 32, 64, 128, 3112667, 6225334, 12450668, 24901336, 49802672, 99605344, 199210688, 398421376]

約数ペア:

[(1, 398421376), (2, 199210688), (4, 99605344), (8, 49802672), (16, 24901336), (32, 12450668), (64, 6225334), (128, 3112667)]