1420420

素因数分解:

$2^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{79}}^1$

素因数の和:148

約数の個数: 48

約数和(自身を含む): 3225600

約数和(自身を除く): 1805180

約数列:

[1, 2, 4, 5, 10, 20, 29, 31, 58, 62, 79, 116, 124, 145, 155, 158, 290, 310, 316, 395, 580, 620, 790, 899, 1580, 1798, 2291, 2449, 3596, 4495, 4582, 4898, 8990, 9164, 9796, 11455, 12245, 17980, 22910, 24490, 45820, 48980, 71021, 142042, 284084, 355105, 710210, 1420420]

約数ペア:

[(1, 1420420), (2, 710210), (4, 355105), (5, 284084), (10, 142042), (20, 71021), (29, 48980), (31, 45820), (58, 24490), (62, 22910), (79, 17980), (116, 12245), (124, 11455), (145, 9796), (155, 9164), (158, 8990), (290, 4898), (310, 4582), (316, 4495), (395, 3596), (580, 2449), (620, 2291), (790, 1798), (899, 1580)]