142020140

素因数分解:

$2^2\times 5^1\times {\mathrm{101}}^1\times {\mathrm{167}}^1\times {\mathrm{421}}^1$

素因数の和:698

約数の個数: 48

約数和(自身を含む): 303718464

約数和(自身を除く): 161698324

約数列:

[1, 2, 4, 5, 10, 20, 101, 167, 202, 334, 404, 421, 505, 668, 835, 842, 1010, 1670, 1684, 2020, 2105, 3340, 4210, 8420, 16867, 33734, 42521, 67468, 70307, 84335, 85042, 140614, 168670, 170084, 212605, 281228, 337340, 351535, 425210, 703070, 850420, 1406140, 7101007, 14202014, 28404028, 35505035, 71010070, 142020140]

約数ペア:

[(1, 142020140), (2, 71010070), (4, 35505035), (5, 28404028), (10, 14202014), (20, 7101007), (101, 1406140), (167, 850420), (202, 703070), (334, 425210), (404, 351535), (421, 337340), (505, 281228), (668, 212605), (835, 170084), (842, 168670), (1010, 140614), (1670, 85042), (1684, 84335), (2020, 70307), (2105, 67468), (3340, 42521), (4210, 33734), (8420, 16867)]