129201220

素因数分解:

$2^2\times 5^1\times {\mathrm{101}}^1\times {\mathrm{167}}^1\times {\mathrm{383}}^1$

素因数の和:660

約数の個数: 48

約数和(自身を含む): 276369408

約数和(自身を除く): 147168188

約数列:

[1, 2, 4, 5, 10, 20, 101, 167, 202, 334, 383, 404, 505, 668, 766, 835, 1010, 1532, 1670, 1915, 2020, 3340, 3830, 7660, 16867, 33734, 38683, 63961, 67468, 77366, 84335, 127922, 154732, 168670, 193415, 255844, 319805, 337340, 386830, 639610, 773660, 1279220, 6460061, 12920122, 25840244, 32300305, 64600610, 129201220]

約数ペア:

[(1, 129201220), (2, 64600610), (4, 32300305), (5, 25840244), (10, 12920122), (20, 6460061), (101, 1279220), (167, 773660), (202, 639610), (334, 386830), (383, 337340), (404, 319805), (505, 255844), (668, 193415), (766, 168670), (835, 154732), (1010, 127922), (1532, 84335), (1670, 77366), (1915, 67468), (2020, 63961), (3340, 38683), (3830, 33734), (7660, 16867)]