15801440

素因数分解:

$2^5\times 5^1\times {\mathrm{61}}^1\times {\mathrm{1619}}^1$

素因数の和:1695

約数の個数: 48

約数和(自身を含む): 37966320

約数和(自身を除く): 22164880

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 61, 80, 122, 160, 244, 305, 488, 610, 976, 1220, 1619, 1952, 2440, 3238, 4880, 6476, 8095, 9760, 12952, 16190, 25904, 32380, 51808, 64760, 98759, 129520, 197518, 259040, 395036, 493795, 790072, 987590, 1580144, 1975180, 3160288, 3950360, 7900720, 15801440]

約数ペア:

[(1, 15801440), (2, 7900720), (4, 3950360), (5, 3160288), (8, 1975180), (10, 1580144), (16, 987590), (20, 790072), (32, 493795), (40, 395036), (61, 259040), (80, 197518), (122, 129520), (160, 98759), (244, 64760), (305, 51808), (488, 32380), (610, 25904), (976, 16190), (1220, 12952), (1619, 9760), (1952, 8095), (2440, 6476), (3238, 4880)]