399681464

素因数分解:

$2^3\times 7^1\times {\mathrm{13}}^1\times {\mathrm{549013}}^1$

素因数の和:549039

約数の個数: 32

約数和(自身を含む): 922343520

約数和(自身を除く): 522662056

約数列:

[1, 2, 4, 7, 8, 13, 14, 26, 28, 52, 56, 91, 104, 182, 364, 728, 549013, 1098026, 2196052, 3843091, 4392104, 7137169, 7686182, 14274338, 15372364, 28548676, 30744728, 49960183, 57097352, 99920366, 199840732, 399681464]

約数ペア:

[(1, 399681464), (2, 199840732), (4, 99920366), (7, 57097352), (8, 49960183), (13, 30744728), (14, 28548676), (26, 15372364), (28, 14274338), (52, 7686182), (56, 7137169), (91, 4392104), (104, 3843091), (182, 2196052), (364, 1098026), (728, 549013)]