51571840

素因数分解:

$2^7\times 5^1\times {\mathrm{61}}^1\times {\mathrm{1321}}^1$

素因数の和:1401

約数の個数: 64

約数和(自身を含む): 125404920

約数和(自身を除く): 73833080

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 61, 64, 80, 122, 128, 160, 244, 305, 320, 488, 610, 640, 976, 1220, 1321, 1952, 2440, 2642, 3904, 4880, 5284, 6605, 7808, 9760, 10568, 13210, 19520, 21136, 26420, 39040, 42272, 52840, 80581, 84544, 105680, 161162, 169088, 211360, 322324, 402905, 422720, 644648, 805810, 845440, 1289296, 1611620, 2578592, 3223240, 5157184, 6446480, 10314368, 12892960, 25785920, 51571840]

約数ペア:

[(1, 51571840), (2, 25785920), (4, 12892960), (5, 10314368), (8, 6446480), (10, 5157184), (16, 3223240), (20, 2578592), (32, 1611620), (40, 1289296), (61, 845440), (64, 805810), (80, 644648), (122, 422720), (128, 402905), (160, 322324), (244, 211360), (305, 169088), (320, 161162), (488, 105680), (610, 84544), (640, 80581), (976, 52840), (1220, 42272), (1321, 39040), (1952, 26420), (2440, 21136), (2642, 19520), (3904, 13210), (4880, 10568), (5284, 9760), (6605, 7808)]