1627889720

素因数分解:

$2^3\times 5^1\times {\mathrm{101}}^1\times {\mathrm{402943}}^1$

素因数の和:403055

約数の個数: 32

約数和(自身を含む): 3699025920

約数和(自身を除く): 2071136200

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 101, 202, 404, 505, 808, 1010, 2020, 4040, 402943, 805886, 1611772, 2014715, 3223544, 4029430, 8058860, 16117720, 40697243, 81394486, 162788972, 203486215, 325577944, 406972430, 813944860, 1627889720]

約数ペア:

[(1, 1627889720), (2, 813944860), (4, 406972430), (5, 325577944), (8, 203486215), (10, 162788972), (20, 81394486), (40, 40697243), (101, 16117720), (202, 8058860), (404, 4029430), (505, 3223544), (808, 2014715), (1010, 1611772), (2020, 805886), (4040, 402943)]