20392860

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{19993}}^1$

素因数の和:20022

約数の個数: 48

約数和(自身を含む): 60461856

約数和(自身を除く): 40068996

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 17, 20, 30, 34, 51, 60, 68, 85, 102, 170, 204, 255, 340, 510, 1020, 19993, 39986, 59979, 79972, 99965, 119958, 199930, 239916, 299895, 339881, 399860, 599790, 679762, 1019643, 1199580, 1359524, 1699405, 2039286, 3398810, 4078572, 5098215, 6797620, 10196430, 20392860]

約数ペア:

[(1, 20392860), (2, 10196430), (3, 6797620), (4, 5098215), (5, 4078572), (6, 3398810), (10, 2039286), (12, 1699405), (15, 1359524), (17, 1199580), (20, 1019643), (30, 679762), (34, 599790), (51, 399860), (60, 339881), (68, 299895), (85, 239916), (102, 199930), (170, 119958), (204, 99965), (255, 79972), (340, 59979), (510, 39986), (1020, 19993)]