20096820

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{311}}^1\times {\mathrm{359}}^1$

素因数の和:685

約数の個数: 72

約数和(自身を含む): 61326720

約数和(自身を除く): 41229900

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 311, 359, 622, 718, 933, 1077, 1244, 1436, 1555, 1795, 1866, 2154, 2799, 3110, 3231, 3590, 3732, 4308, 4665, 5385, 5598, 6220, 6462, 7180, 9330, 10770, 11196, 12924, 13995, 16155, 18660, 21540, 27990, 32310, 55980, 64620, 111649, 223298, 334947, 446596, 558245, 669894, 1004841, 1116490, 1339788, 1674735, 2009682, 2232980, 3349470, 4019364, 5024205, 6698940, 10048410, 20096820]

約数ペア:

[(1, 20096820), (2, 10048410), (3, 6698940), (4, 5024205), (5, 4019364), (6, 3349470), (9, 2232980), (10, 2009682), (12, 1674735), (15, 1339788), (18, 1116490), (20, 1004841), (30, 669894), (36, 558245), (45, 446596), (60, 334947), (90, 223298), (180, 111649), (311, 64620), (359, 55980), (622, 32310), (718, 27990), (933, 21540), (1077, 18660), (1244, 16155), (1436, 13995), (1555, 12924), (1795, 11196), (1866, 10770), (2154, 9330), (2799, 7180), (3110, 6462), (3231, 6220), (3590, 5598), (3732, 5385), (4308, 4665)]