128962480

素因数分解:

$2^4\times 5^1\times {\mathrm{31}}^1\times {\mathrm{149}}^1\times {\mathrm{349}}^1$

素因数の和:542

約数の個数: 80

約数和(自身を含む): 312480000

約数和(自身を除く): 183517520

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 40, 62, 80, 124, 149, 155, 248, 298, 310, 349, 496, 596, 620, 698, 745, 1192, 1240, 1396, 1490, 1745, 2384, 2480, 2792, 2980, 3490, 4619, 5584, 5960, 6980, 9238, 10819, 11920, 13960, 18476, 21638, 23095, 27920, 36952, 43276, 46190, 52001, 54095, 73904, 86552, 92380, 104002, 108190, 173104, 184760, 208004, 216380, 260005, 369520, 416008, 432760, 520010, 832016, 865520, 1040020, 1612031, 2080040, 3224062, 4160080, 6448124, 8060155, 12896248, 16120310, 25792496, 32240620, 64481240, 128962480]

約数ペア:

[(1, 128962480), (2, 64481240), (4, 32240620), (5, 25792496), (8, 16120310), (10, 12896248), (16, 8060155), (20, 6448124), (31, 4160080), (40, 3224062), (62, 2080040), (80, 1612031), (124, 1040020), (149, 865520), (155, 832016), (248, 520010), (298, 432760), (310, 416008), (349, 369520), (496, 260005), (596, 216380), (620, 208004), (698, 184760), (745, 173104), (1192, 108190), (1240, 104002), (1396, 92380), (1490, 86552), (1745, 73904), (2384, 54095), (2480, 52001), (2792, 46190), (2980, 43276), (3490, 36952), (4619, 27920), (5584, 23095), (5960, 21638), (6980, 18476), (9238, 13960), (10819, 11920)]