1254160

素因数分解:

$2^4\times 5^1\times {\mathrm{61}}^1\times {\mathrm{257}}^1$

素因数の和:331

約数の個数: 40

約数和(自身を含む): 2975256

約数和(自身を除く): 1721096

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 61, 80, 122, 244, 257, 305, 488, 514, 610, 976, 1028, 1220, 1285, 2056, 2440, 2570, 4112, 4880, 5140, 10280, 15677, 20560, 31354, 62708, 78385, 125416, 156770, 250832, 313540, 627080, 1254160]

約数ペア:

[(1, 1254160), (2, 627080), (4, 313540), (5, 250832), (8, 156770), (10, 125416), (16, 78385), (20, 62708), (40, 31354), (61, 20560), (80, 15677), (122, 10280), (244, 5140), (257, 4880), (305, 4112), (488, 2570), (514, 2440), (610, 2056), (976, 1285), (1028, 1220)]