20442690

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{197}}^1\times {\mathrm{1153}}^1$

素因数の和:1363

約数の個数: 48

約数和(自身を含む): 53467128

約数和(自身を除く): 33024438

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 45, 90, 197, 394, 591, 985, 1153, 1182, 1773, 1970, 2306, 2955, 3459, 3546, 5765, 5910, 6918, 8865, 10377, 11530, 17295, 17730, 20754, 34590, 51885, 103770, 227141, 454282, 681423, 1135705, 1362846, 2044269, 2271410, 3407115, 4088538, 6814230, 10221345, 20442690]

約数ペア:

[(1, 20442690), (2, 10221345), (3, 6814230), (5, 4088538), (6, 3407115), (9, 2271410), (10, 2044269), (15, 1362846), (18, 1135705), (30, 681423), (45, 454282), (90, 227141), (197, 103770), (394, 51885), (591, 34590), (985, 20754), (1153, 17730), (1182, 17295), (1773, 11530), (1970, 10377), (2306, 8865), (2955, 6918), (3459, 5910), (3546, 5765)]