179557580

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{71}}^1\times {\mathrm{4079}}^1$

素因数の和:4190

約数の個数: 48

約数和(自身を含む): 394813440

約数和(自身を除く): 215255860

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 71, 124, 142, 155, 284, 310, 355, 620, 710, 1420, 2201, 4079, 4402, 8158, 8804, 11005, 16316, 20395, 22010, 40790, 44020, 81580, 126449, 252898, 289609, 505796, 579218, 632245, 1158436, 1264490, 1448045, 2528980, 2896090, 5792180, 8977879, 17955758, 35911516, 44889395, 89778790, 179557580]

約数ペア:

[(1, 179557580), (2, 89778790), (4, 44889395), (5, 35911516), (10, 17955758), (20, 8977879), (31, 5792180), (62, 2896090), (71, 2528980), (124, 1448045), (142, 1264490), (155, 1158436), (284, 632245), (310, 579218), (355, 505796), (620, 289609), (710, 252898), (1420, 126449), (2201, 81580), (4079, 44020), (4402, 40790), (8158, 22010), (8804, 20395), (11005, 16316)]