81070236

素因数分解:

$2^2\times 3^2\times {\mathrm{13}}^1\times {\mathrm{311}}^1\times {\mathrm{557}}^1$

素因数の和:891

約数の個数: 72

約数和(自身を含む): 221798304

約数和(自身を除く): 140728068

約数列:

[1, 2, 3, 4, 6, 9, 12, 13, 18, 26, 36, 39, 52, 78, 117, 156, 234, 311, 468, 557, 622, 933, 1114, 1244, 1671, 1866, 2228, 2799, 3342, 3732, 4043, 5013, 5598, 6684, 7241, 8086, 10026, 11196, 12129, 14482, 16172, 20052, 21723, 24258, 28964, 36387, 43446, 48516, 65169, 72774, 86892, 130338, 145548, 173227, 260676, 346454, 519681, 692908, 1039362, 1559043, 2078724, 2251951, 3118086, 4503902, 6236172, 6755853, 9007804, 13511706, 20267559, 27023412, 40535118, 81070236]

約数ペア:

[(1, 81070236), (2, 40535118), (3, 27023412), (4, 20267559), (6, 13511706), (9, 9007804), (12, 6755853), (13, 6236172), (18, 4503902), (26, 3118086), (36, 2251951), (39, 2078724), (52, 1559043), (78, 1039362), (117, 692908), (156, 519681), (234, 346454), (311, 260676), (468, 173227), (557, 145548), (622, 130338), (933, 86892), (1114, 72774), (1244, 65169), (1671, 48516), (1866, 43446), (2228, 36387), (2799, 28964), (3342, 24258), (3732, 21723), (4043, 20052), (5013, 16172), (5598, 14482), (6684, 12129), (7241, 11196), (8086, 10026)]