264752020

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^2\times {\mathrm{29}}^1\times {\mathrm{37}}^1\times {\mathrm{73}}^1$

素因数の和:174

約数の個数: 144

約数和(自身を含む): 648390960

約数和(自身を除く): 383638940

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 29, 37, 52, 58, 65, 73, 74, 116, 130, 145, 146, 148, 169, 185, 260, 290, 292, 338, 365, 370, 377, 481, 580, 676, 730, 740, 754, 845, 949, 962, 1073, 1460, 1508, 1690, 1885, 1898, 1924, 2117, 2146, 2405, 2701, 3380, 3770, 3796, 4234, 4292, 4745, 4810, 4901, 5365, 5402, 6253, 7540, 8468, 9490, 9620, 9802, 10585, 10730, 10804, 12337, 12506, 13505, 13949, 18980, 19604, 21170, 21460, 24505, 24674, 25012, 27010, 27521, 27898, 31265, 35113, 42340, 49010, 49348, 54020, 55042, 55796, 61685, 62530, 69745, 70226, 78329, 98020, 110084, 123370, 125060, 137605, 139490, 140452, 156658, 175565, 181337, 246740, 275210, 278980, 313316, 351130, 357773, 362674, 391645, 456469, 550420, 702260, 715546, 725348, 783290, 906685, 912938, 1018277, 1431092, 1566580, 1788865, 1813370, 1825876, 2036554, 2282345, 3577730, 3626740, 4073108, 4564690, 5091385, 7155460, 9129380, 10182770, 13237601, 20365540, 26475202, 52950404, 66188005, 132376010, 264752020]

約数ペア:

[(1, 264752020), (2, 132376010), (4, 66188005), (5, 52950404), (10, 26475202), (13, 20365540), (20, 13237601), (26, 10182770), (29, 9129380), (37, 7155460), (52, 5091385), (58, 4564690), (65, 4073108), (73, 3626740), (74, 3577730), (116, 2282345), (130, 2036554), (145, 1825876), (146, 1813370), (148, 1788865), (169, 1566580), (185, 1431092), (260, 1018277), (290, 912938), (292, 906685), (338, 783290), (365, 725348), (370, 715546), (377, 702260), (481, 550420), (580, 456469), (676, 391645), (730, 362674), (740, 357773), (754, 351130), (845, 313316), (949, 278980), (962, 275210), (1073, 246740), (1460, 181337), (1508, 175565), (1690, 156658), (1885, 140452), (1898, 139490), (1924, 137605), (2117, 125060), (2146, 123370), (2405, 110084), (2701, 98020), (3380, 78329), (3770, 70226), (3796, 69745), (4234, 62530), (4292, 61685), (4745, 55796), (4810, 55042), (4901, 54020), (5365, 49348), (5402, 49010), (6253, 42340), (7540, 35113), (8468, 31265), (9490, 27898), (9620, 27521), (9802, 27010), (10585, 25012), (10730, 24674), (10804, 24505), (12337, 21460), (12506, 21170), (13505, 19604), (13949, 18980)]