124800640

素因数分解:

$2^7\times 5^1\times {\mathrm{109}}^1\times {\mathrm{1789}}^1$

素因数の和:1917

約数の個数: 64

約数和(自身を含む): 301257000

約数和(自身を除く): 176456360

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 109, 128, 160, 218, 320, 436, 545, 640, 872, 1090, 1744, 1789, 2180, 3488, 3578, 4360, 6976, 7156, 8720, 8945, 13952, 14312, 17440, 17890, 28624, 34880, 35780, 57248, 69760, 71560, 114496, 143120, 195001, 228992, 286240, 390002, 572480, 780004, 975005, 1144960, 1560008, 1950010, 3120016, 3900020, 6240032, 7800040, 12480064, 15600080, 24960128, 31200160, 62400320, 124800640]

約数ペア:

[(1, 124800640), (2, 62400320), (4, 31200160), (5, 24960128), (8, 15600080), (10, 12480064), (16, 7800040), (20, 6240032), (32, 3900020), (40, 3120016), (64, 1950010), (80, 1560008), (109, 1144960), (128, 975005), (160, 780004), (218, 572480), (320, 390002), (436, 286240), (545, 228992), (640, 195001), (872, 143120), (1090, 114496), (1744, 71560), (1789, 69760), (2180, 57248), (3488, 35780), (3578, 34880), (4360, 28624), (6976, 17890), (7156, 17440), (8720, 14312), (8945, 13952)]