128095120

素因数分解:

$2^4\times 5^1\times {\mathrm{61}}^1\times {\mathrm{26249}}^1$

素因数の和:26323

約数の個数: 40

約数和(自身を含む): 302715000

約数和(自身を除く): 174619880

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 61, 80, 122, 244, 305, 488, 610, 976, 1220, 2440, 4880, 26249, 52498, 104996, 131245, 209992, 262490, 419984, 524980, 1049960, 1601189, 2099920, 3202378, 6404756, 8005945, 12809512, 16011890, 25619024, 32023780, 64047560, 128095120]

約数ペア:

[(1, 128095120), (2, 64047560), (4, 32023780), (5, 25619024), (8, 16011890), (10, 12809512), (16, 8005945), (20, 6404756), (40, 3202378), (61, 2099920), (80, 1601189), (122, 1049960), (244, 524980), (305, 419984), (488, 262490), (610, 209992), (976, 131245), (1220, 104996), (2440, 52498), (4880, 26249)]