61440760

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{49549}}^1$

素因数の和:49591

約数の個数: 32

約数和(自身を含む): 142704000

約数和(自身を除く): 81263240

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 124, 155, 248, 310, 620, 1240, 49549, 99098, 198196, 247745, 396392, 495490, 990980, 1536019, 1981960, 3072038, 6144076, 7680095, 12288152, 15360190, 30720380, 61440760]

約数ペア:

[(1, 61440760), (2, 30720380), (4, 15360190), (5, 12288152), (8, 7680095), (10, 6144076), (20, 3072038), (31, 1981960), (40, 1536019), (62, 990980), (124, 495490), (155, 396392), (248, 247745), (310, 198196), (620, 99098), (1240, 49549)]