20637860

素因数分解:

$2^2\times 5^1\times {\mathrm{37}}^1\times {\mathrm{167}}^2$

素因数の和:380

約数の個数: 36

約数和(自身を含む): 44778972

約数和(自身を除く): 24141112

約数列:

[1, 2, 4, 5, 10, 20, 37, 74, 148, 167, 185, 334, 370, 668, 740, 835, 1670, 3340, 6179, 12358, 24716, 27889, 30895, 55778, 61790, 111556, 123580, 139445, 278890, 557780, 1031893, 2063786, 4127572, 5159465, 10318930, 20637860]

約数ペア:

[(1, 20637860), (2, 10318930), (4, 5159465), (5, 4127572), (10, 2063786), (20, 1031893), (37, 557780), (74, 278890), (148, 139445), (167, 123580), (185, 111556), (334, 61790), (370, 55778), (668, 30895), (740, 27889), (835, 24716), (1670, 12358), (3340, 6179)]