20777910

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{131}}^1\times {\mathrm{311}}^1$

素因数の和:469

約数の個数: 64

約数和(自身を含む): 53374464

約数和(自身を除く): 32596554

約数列:

[1, 2, 3, 5, 6, 10, 15, 17, 30, 34, 51, 85, 102, 131, 170, 255, 262, 311, 393, 510, 622, 655, 786, 933, 1310, 1555, 1866, 1965, 2227, 3110, 3930, 4454, 4665, 5287, 6681, 9330, 10574, 11135, 13362, 15861, 22270, 26435, 31722, 33405, 40741, 52870, 66810, 79305, 81482, 122223, 158610, 203705, 244446, 407410, 611115, 692597, 1222230, 1385194, 2077791, 3462985, 4155582, 6925970, 10388955, 20777910]

約数ペア:

[(1, 20777910), (2, 10388955), (3, 6925970), (5, 4155582), (6, 3462985), (10, 2077791), (15, 1385194), (17, 1222230), (30, 692597), (34, 611115), (51, 407410), (85, 244446), (102, 203705), (131, 158610), (170, 122223), (255, 81482), (262, 79305), (311, 66810), (393, 52870), (510, 40741), (622, 33405), (655, 31722), (786, 26435), (933, 22270), (1310, 15861), (1555, 13362), (1866, 11135), (1965, 10574), (2227, 9330), (3110, 6681), (3930, 5287), (4454, 4665)]