280731412

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{349}}^1\times {\mathrm{499}}^1$

素因数の和:896

約数の個数: 48

約数和(自身を含む): 548800000

約数和(自身を除く): 268068588

約数列:

[1, 2, 4, 13, 26, 31, 52, 62, 124, 349, 403, 499, 698, 806, 998, 1396, 1612, 1996, 4537, 6487, 9074, 10819, 12974, 15469, 18148, 21638, 25948, 30938, 43276, 61876, 140647, 174151, 201097, 281294, 348302, 402194, 562588, 696604, 804388, 2263963, 4527926, 5398681, 9055852, 10797362, 21594724, 70182853, 140365706, 280731412]

約数ペア:

[(1, 280731412), (2, 140365706), (4, 70182853), (13, 21594724), (26, 10797362), (31, 9055852), (52, 5398681), (62, 4527926), (124, 2263963), (349, 804388), (403, 696604), (499, 562588), (698, 402194), (806, 348302), (998, 281294), (1396, 201097), (1612, 174151), (1996, 140647), (4537, 61876), (6487, 43276), (9074, 30938), (10819, 25948), (12974, 21638), (15469, 18148)]