18668607980

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{67}}^1\times {\mathrm{1266527}}^1$

素因数の和:1266614

約数の個数: 48

約数和(自身を含む): 43406447616

約数和(自身を除く): 24737839636

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 67, 110, 134, 220, 268, 335, 670, 737, 1340, 1474, 2948, 3685, 7370, 14740, 1266527, 2533054, 5066108, 6332635, 12665270, 13931797, 25330540, 27863594, 55727188, 69658985, 84857309, 139317970, 169714618, 278635940, 339429236, 424286545, 848573090, 933430399, 1697146180, 1866860798, 3733721596, 4667151995, 9334303990, 18668607980]

約数ペア:

[(1, 18668607980), (2, 9334303990), (4, 4667151995), (5, 3733721596), (10, 1866860798), (11, 1697146180), (20, 933430399), (22, 848573090), (44, 424286545), (55, 339429236), (67, 278635940), (110, 169714618), (134, 139317970), (220, 84857309), (268, 69658985), (335, 55727188), (670, 27863594), (737, 25330540), (1340, 13931797), (1474, 12665270), (2948, 6332635), (3685, 5066108), (7370, 2533054), (14740, 1266527)]