878020

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{307}}^1$

素因数の和:340

約数の個数: 48

約数和(自身を含む): 2173248

約数和(自身を除く): 1295228

約数列:

[1, 2, 4, 5, 10, 11, 13, 20, 22, 26, 44, 52, 55, 65, 110, 130, 143, 220, 260, 286, 307, 572, 614, 715, 1228, 1430, 1535, 2860, 3070, 3377, 3991, 6140, 6754, 7982, 13508, 15964, 16885, 19955, 33770, 39910, 43901, 67540, 79820, 87802, 175604, 219505, 439010, 878020]

約数ペア:

[(1, 878020), (2, 439010), (4, 219505), (5, 175604), (10, 87802), (11, 79820), (13, 67540), (20, 43901), (22, 39910), (26, 33770), (44, 19955), (52, 16885), (55, 15964), (65, 13508), (110, 7982), (130, 6754), (143, 6140), (220, 3991), (260, 3377), (286, 3070), (307, 2860), (572, 1535), (614, 1430), (715, 1228)]