19415080

素因数分解:

$2^3\times 5^1\times {\mathrm{61}}^1\times {\mathrm{73}}^1\times {\mathrm{109}}^1$

素因数の和:254

約数の個数: 64

約数和(自身を含む): 45421200

約数和(自身を除く): 26006120

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 61, 73, 109, 122, 146, 218, 244, 292, 305, 365, 436, 488, 545, 584, 610, 730, 872, 1090, 1220, 1460, 2180, 2440, 2920, 4360, 4453, 6649, 7957, 8906, 13298, 15914, 17812, 22265, 26596, 31828, 33245, 35624, 39785, 44530, 53192, 63656, 66490, 79570, 89060, 132980, 159140, 178120, 265960, 318280, 485377, 970754, 1941508, 2426885, 3883016, 4853770, 9707540, 19415080]

約数ペア:

[(1, 19415080), (2, 9707540), (4, 4853770), (5, 3883016), (8, 2426885), (10, 1941508), (20, 970754), (40, 485377), (61, 318280), (73, 265960), (109, 178120), (122, 159140), (146, 132980), (218, 89060), (244, 79570), (292, 66490), (305, 63656), (365, 53192), (436, 44530), (488, 39785), (545, 35624), (584, 33245), (610, 31828), (730, 26596), (872, 22265), (1090, 17812), (1220, 15914), (1460, 13298), (2180, 8906), (2440, 7957), (2920, 6649), (4360, 4453)]