51894520

素因数分解:

$2^3\times 5^1\times {\mathrm{41}}^1\times {\mathrm{31643}}^1$

素因数の和:31695

約数の個数: 32

約数和(自身を含む): 119614320

約数和(自身を除く): 67719800

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 41, 82, 164, 205, 328, 410, 820, 1640, 31643, 63286, 126572, 158215, 253144, 316430, 632860, 1265720, 1297363, 2594726, 5189452, 6486815, 10378904, 12973630, 25947260, 51894520]

約数ペア:

[(1, 51894520), (2, 25947260), (4, 12973630), (5, 10378904), (8, 6486815), (10, 5189452), (20, 2594726), (40, 1297363), (41, 1265720), (82, 632860), (164, 316430), (205, 253144), (328, 158215), (410, 126572), (820, 63286), (1640, 31643)]