1398007760

素因数分解:

$2^4\times 5^1\times {\mathrm{61}}^1\times {\mathrm{286477}}^1$

素因数の和:286551

約数の個数: 40

約数和(自身を含む): 3303664296

約数和(自身を除く): 1905656536

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 61, 80, 122, 244, 305, 488, 610, 976, 1220, 2440, 4880, 286477, 572954, 1145908, 1432385, 2291816, 2864770, 4583632, 5729540, 11459080, 17475097, 22918160, 34950194, 69900388, 87375485, 139800776, 174750970, 279601552, 349501940, 699003880, 1398007760]

約数ペア:

[(1, 1398007760), (2, 699003880), (4, 349501940), (5, 279601552), (8, 174750970), (10, 139800776), (16, 87375485), (20, 69900388), (40, 34950194), (61, 22918160), (80, 17475097), (122, 11459080), (244, 5729540), (305, 4583632), (488, 2864770), (610, 2291816), (976, 1432385), (1220, 1145908), (2440, 572954), (4880, 286477)]