6446480

素因数分解:

$2^4\times 5^1\times {\mathrm{61}}^1\times {\mathrm{1321}}^1$

素因数の和:1395

約数の個数: 40

約数和(自身を含む): 15245304

約数和(自身を除く): 8798824

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 61, 80, 122, 244, 305, 488, 610, 976, 1220, 1321, 2440, 2642, 4880, 5284, 6605, 10568, 13210, 21136, 26420, 52840, 80581, 105680, 161162, 322324, 402905, 644648, 805810, 1289296, 1611620, 3223240, 6446480]

約数ペア:

[(1, 6446480), (2, 3223240), (4, 1611620), (5, 1289296), (8, 805810), (10, 644648), (16, 402905), (20, 322324), (40, 161162), (61, 105680), (80, 80581), (122, 52840), (244, 26420), (305, 21136), (488, 13210), (610, 10568), (976, 6605), (1220, 5284), (1321, 4880), (2440, 2642)]