90291890

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{167}}^1\times {\mathrm{4159}}^1$

素因数の和:4346

約数の個数: 32

約数和(自身を含む): 176117760

約数和(自身を除く): 85825870

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 167, 334, 835, 1670, 2171, 4159, 4342, 8318, 10855, 20795, 21710, 41590, 54067, 108134, 270335, 540670, 694553, 1389106, 3472765, 6945530, 9029189, 18058378, 45145945, 90291890]

約数ペア:

[(1, 90291890), (2, 45145945), (5, 18058378), (10, 9029189), (13, 6945530), (26, 3472765), (65, 1389106), (130, 694553), (167, 540670), (334, 270335), (835, 108134), (1670, 54067), (2171, 41590), (4159, 21710), (4342, 20795), (8318, 10855)]