128963820

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{431}}^1\times {\mathrm{4987}}^1$

素因数の和:5430

約数の個数: 48

約数和(自身を含む): 362009088

約数和(自身を除く): 233045268

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 431, 862, 1293, 1724, 2155, 2586, 4310, 4987, 5172, 6465, 8620, 9974, 12930, 14961, 19948, 24935, 25860, 29922, 49870, 59844, 74805, 99740, 149610, 299220, 2149397, 4298794, 6448191, 8597588, 10746985, 12896382, 21493970, 25792764, 32240955, 42987940, 64481910, 128963820]

約数ペア:

[(1, 128963820), (2, 64481910), (3, 42987940), (4, 32240955), (5, 25792764), (6, 21493970), (10, 12896382), (12, 10746985), (15, 8597588), (20, 6448191), (30, 4298794), (60, 2149397), (431, 299220), (862, 149610), (1293, 99740), (1724, 74805), (2155, 59844), (2586, 49870), (4310, 29922), (4987, 25860), (5172, 24935), (6465, 19948), (8620, 14961), (9974, 12930)]