128328140

素因数分解:

$2^2\times 5^1\times {\mathrm{61}}^1\times {\mathrm{293}}^1\times {\mathrm{359}}^1$

素因数の和:722

約数の個数: 48

約数和(自身を含む): 275607360

約数和(自身を除く): 147279220

約数列:

[1, 2, 4, 5, 10, 20, 61, 122, 244, 293, 305, 359, 586, 610, 718, 1172, 1220, 1436, 1465, 1795, 2930, 3590, 5860, 7180, 17873, 21899, 35746, 43798, 71492, 87596, 89365, 105187, 109495, 178730, 210374, 218990, 357460, 420748, 437980, 525935, 1051870, 2103740, 6416407, 12832814, 25665628, 32082035, 64164070, 128328140]

約数ペア:

[(1, 128328140), (2, 64164070), (4, 32082035), (5, 25665628), (10, 12832814), (20, 6416407), (61, 2103740), (122, 1051870), (244, 525935), (293, 437980), (305, 420748), (359, 357460), (586, 218990), (610, 210374), (718, 178730), (1172, 109495), (1220, 105187), (1436, 89365), (1465, 87596), (1795, 71492), (2930, 43798), (3590, 35746), (5860, 21899), (7180, 17873)]