64443320

素因数分解:

$2^3\times 5^1\times {\mathrm{1129}}^1\times {\mathrm{1427}}^1$

素因数の和:2567

約数の個数: 32

約数和(自身を含む): 145227600

約数和(自身を除く): 80784280

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 1129, 1427, 2258, 2854, 4516, 5645, 5708, 7135, 9032, 11290, 11416, 14270, 22580, 28540, 45160, 57080, 1611083, 3222166, 6444332, 8055415, 12888664, 16110830, 32221660, 64443320]

約数ペア:

[(1, 64443320), (2, 32221660), (4, 16110830), (5, 12888664), (8, 8055415), (10, 6444332), (20, 3222166), (40, 1611083), (1129, 57080), (1427, 45160), (2258, 28540), (2854, 22580), (4516, 14270), (5645, 11416), (5708, 11290), (7135, 9032)]