2018457440

素因数分解:

$2^5\times 5^1\times {\mathrm{191}}^1\times {\mathrm{257}}^2$

素因数の和:720

約数の個数: 72

約数和(自身を含む): 4812296832

約数和(自身を除く): 2793839392

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 191, 257, 382, 514, 764, 955, 1028, 1285, 1528, 1910, 2056, 2570, 3056, 3820, 4112, 5140, 6112, 7640, 8224, 10280, 15280, 20560, 30560, 41120, 49087, 66049, 98174, 132098, 196348, 245435, 264196, 330245, 392696, 490870, 528392, 660490, 785392, 981740, 1056784, 1320980, 1570784, 1963480, 2113568, 2641960, 3926960, 5283920, 7853920, 10567840, 12615359, 25230718, 50461436, 63076795, 100922872, 126153590, 201845744, 252307180, 403691488, 504614360, 1009228720, 2018457440]

約数ペア:

[(1, 2018457440), (2, 1009228720), (4, 504614360), (5, 403691488), (8, 252307180), (10, 201845744), (16, 126153590), (20, 100922872), (32, 63076795), (40, 50461436), (80, 25230718), (160, 12615359), (191, 10567840), (257, 7853920), (382, 5283920), (514, 3926960), (764, 2641960), (955, 2113568), (1028, 1963480), (1285, 1570784), (1528, 1320980), (1910, 1056784), (2056, 981740), (2570, 785392), (3056, 660490), (3820, 528392), (4112, 490870), (5140, 392696), (6112, 330245), (7640, 264196), (8224, 245435), (10280, 196348), (15280, 132098), (20560, 98174), (30560, 66049), (41120, 49087)]