128232520

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{12979}}^1$

素因数の和:13022

約数の個数: 64

約数和(自身を含む): 327096000

約数和(自身を除く): 198863480

約数列:

[1, 2, 4, 5, 8, 10, 13, 19, 20, 26, 38, 40, 52, 65, 76, 95, 104, 130, 152, 190, 247, 260, 380, 494, 520, 760, 988, 1235, 1976, 2470, 4940, 9880, 12979, 25958, 51916, 64895, 103832, 129790, 168727, 246601, 259580, 337454, 493202, 519160, 674908, 843635, 986404, 1233005, 1349816, 1687270, 1972808, 2466010, 3205813, 3374540, 4932020, 6411626, 6749080, 9864040, 12823252, 16029065, 25646504, 32058130, 64116260, 128232520]

約数ペア:

[(1, 128232520), (2, 64116260), (4, 32058130), (5, 25646504), (8, 16029065), (10, 12823252), (13, 9864040), (19, 6749080), (20, 6411626), (26, 4932020), (38, 3374540), (40, 3205813), (52, 2466010), (65, 1972808), (76, 1687270), (95, 1349816), (104, 1233005), (130, 986404), (152, 843635), (190, 674908), (247, 519160), (260, 493202), (380, 337454), (494, 259580), (520, 246601), (760, 168727), (988, 129790), (1235, 103832), (1976, 64895), (2470, 51916), (4940, 25958), (9880, 12979)]