79678840

素因数分解:

$2^3\times 5^1\times {\mathrm{1021}}^1\times {\mathrm{1951}}^1$

素因数の和:2983

約数の個数: 32

約数和(自身を含む): 179544960

約数和(自身を除く): 99866120

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 1021, 1951, 2042, 3902, 4084, 5105, 7804, 8168, 9755, 10210, 15608, 19510, 20420, 39020, 40840, 78040, 1991971, 3983942, 7967884, 9959855, 15935768, 19919710, 39839420, 79678840]

約数ペア:

[(1, 79678840), (2, 39839420), (4, 19919710), (5, 15935768), (8, 9959855), (10, 7967884), (20, 3983942), (40, 1991971), (1021, 78040), (1951, 40840), (2042, 39020), (3902, 20420), (4084, 19510), (5105, 15608), (7804, 10210), (8168, 9755)]