81467980

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{67}}^1\times {\mathrm{5527}}^1$

素因数の和:5614

約数の個数: 48

約数和(自身を含む): 189455616

約数和(自身を除く): 107987636

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, 5527, 7370, 11054, 14740, 22108, 27635, 55270, 60797, 110540, 121594, 243188, 303985, 370309, 607970, 740618, 1215940, 1481236, 1851545, 3703090, 4073399, 7406180, 8146798, 16293596, 20366995, 40733990, 81467980]

約数ペア:

[(1, 81467980), (2, 40733990), (4, 20366995), (5, 16293596), (10, 8146798), (11, 7406180), (20, 4073399), (22, 3703090), (44, 1851545), (55, 1481236), (67, 1215940), (110, 740618), (134, 607970), (220, 370309), (268, 303985), (335, 243188), (670, 121594), (737, 110540), (1340, 60797), (1474, 55270), (2948, 27635), (3685, 22108), (5527, 14740), (7370, 11054)]