251643320

素因数分解:

$2^3\times 5^1\times {\mathrm{1423}}^1\times {\mathrm{4421}}^1$

素因数の和:5855

約数の個数: 32

約数和(自身を含む): 566723520

約数和(自身を除く): 315080200

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 1423, 2846, 4421, 5692, 7115, 8842, 11384, 14230, 17684, 22105, 28460, 35368, 44210, 56920, 88420, 176840, 6291083, 12582166, 25164332, 31455415, 50328664, 62910830, 125821660, 251643320]

約数ペア:

[(1, 251643320), (2, 125821660), (4, 62910830), (5, 50328664), (8, 31455415), (10, 25164332), (20, 12582166), (40, 6291083), (1423, 176840), (2846, 88420), (4421, 56920), (5692, 44210), (7115, 35368), (8842, 28460), (11384, 22105), (14230, 17684)]