8700380

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{109}}^1\times {\mathrm{307}}^1$

素因数の和:438

約数の個数: 48

約数和(自身を含む): 19921440

約数和(自身を除く): 11221060

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 109, 130, 218, 260, 307, 436, 545, 614, 1090, 1228, 1417, 1535, 2180, 2834, 3070, 3991, 5668, 6140, 7085, 7982, 14170, 15964, 19955, 28340, 33463, 39910, 66926, 79820, 133852, 167315, 334630, 435019, 669260, 870038, 1740076, 2175095, 4350190, 8700380]

約数ペア:

[(1, 8700380), (2, 4350190), (4, 2175095), (5, 1740076), (10, 870038), (13, 669260), (20, 435019), (26, 334630), (52, 167315), (65, 133852), (109, 79820), (130, 66926), (218, 39910), (260, 33463), (307, 28340), (436, 19955), (545, 15964), (614, 14170), (1090, 7982), (1228, 7085), (1417, 6140), (1535, 5668), (2180, 3991), (2834, 3070)]