20398310

素因数分解:

$2^1\times 5^1\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{2269}}^1$

素因数の和:2336

約数の個数: 32

約数和(自身を含む): 39225600

約数和(自身を除く): 18827290

約数列:

[1, 2, 5, 10, 29, 31, 58, 62, 145, 155, 290, 310, 899, 1798, 2269, 4495, 4538, 8990, 11345, 22690, 65801, 70339, 131602, 140678, 329005, 351695, 658010, 703390, 2039831, 4079662, 10199155, 20398310]

約数ペア:

[(1, 20398310), (2, 10199155), (5, 4079662), (10, 2039831), (29, 703390), (31, 658010), (58, 351695), (62, 329005), (145, 140678), (155, 131602), (290, 70339), (310, 65801), (899, 22690), (1798, 11345), (2269, 8990), (4495, 4538)]