399478490

素因数分解:

$2^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{53}}^1\times {\mathrm{32771}}^1$

素因数の和:32854

約数の個数: 32

約数和(自身を含む): 764505216

約数和(自身を除く): 365026726

約数列:

[1, 2, 5, 10, 23, 46, 53, 106, 115, 230, 265, 530, 1219, 2438, 6095, 12190, 32771, 65542, 163855, 327710, 753733, 1507466, 1736863, 3473726, 3768665, 7537330, 8684315, 17368630, 39947849, 79895698, 199739245, 399478490]

約数ペア:

[(1, 399478490), (2, 199739245), (5, 79895698), (10, 39947849), (23, 17368630), (46, 8684315), (53, 7537330), (106, 3768665), (115, 3473726), (230, 1736863), (265, 1507466), (530, 753733), (1219, 327710), (2438, 163855), (6095, 65542), (12190, 32771)]