20800620

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{73}}^1\times {\mathrm{1583}}^1$

素因数の和:1671

約数の個数: 72

約数和(自身を含む): 63999936

約数和(自身を除く): 43199316

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 73, 90, 146, 180, 219, 292, 365, 438, 657, 730, 876, 1095, 1314, 1460, 1583, 2190, 2628, 3166, 3285, 4380, 4749, 6332, 6570, 7915, 9498, 13140, 14247, 15830, 18996, 23745, 28494, 31660, 47490, 56988, 71235, 94980, 115559, 142470, 231118, 284940, 346677, 462236, 577795, 693354, 1040031, 1155590, 1386708, 1733385, 2080062, 2311180, 3466770, 4160124, 5200155, 6933540, 10400310, 20800620]

約数ペア:

[(1, 20800620), (2, 10400310), (3, 6933540), (4, 5200155), (5, 4160124), (6, 3466770), (9, 2311180), (10, 2080062), (12, 1733385), (15, 1386708), (18, 1155590), (20, 1040031), (30, 693354), (36, 577795), (45, 462236), (60, 346677), (73, 284940), (90, 231118), (146, 142470), (180, 115559), (219, 94980), (292, 71235), (365, 56988), (438, 47490), (657, 31660), (730, 28494), (876, 23745), (1095, 18996), (1314, 15830), (1460, 14247), (1583, 13140), (2190, 9498), (2628, 7915), (3166, 6570), (3285, 6332), (4380, 4749)]