28618760

素因数分解:

$2^3\times 5^1\times {\mathrm{37}}^1\times {\mathrm{61}}^1\times {\mathrm{317}}^1$

素因数の和:426

約数の個数: 64

約数和(自身を含む): 67428720

約数和(自身を除く): 38809960

約数列:

[1, 2, 4, 5, 8, 10, 20, 37, 40, 61, 74, 122, 148, 185, 244, 296, 305, 317, 370, 488, 610, 634, 740, 1220, 1268, 1480, 1585, 2257, 2440, 2536, 3170, 4514, 6340, 9028, 11285, 11729, 12680, 18056, 19337, 22570, 23458, 38674, 45140, 46916, 58645, 77348, 90280, 93832, 96685, 117290, 154696, 193370, 234580, 386740, 469160, 715469, 773480, 1430938, 2861876, 3577345, 5723752, 7154690, 14309380, 28618760]

約数ペア:

[(1, 28618760), (2, 14309380), (4, 7154690), (5, 5723752), (8, 3577345), (10, 2861876), (20, 1430938), (37, 773480), (40, 715469), (61, 469160), (74, 386740), (122, 234580), (148, 193370), (185, 154696), (244, 117290), (296, 96685), (305, 93832), (317, 90280), (370, 77348), (488, 58645), (610, 46916), (634, 45140), (740, 38674), (1220, 23458), (1268, 22570), (1480, 19337), (1585, 18056), (2257, 12680), (2440, 11729), (2536, 11285), (3170, 9028), (4514, 6340)]