40389660

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{457}}^1\times {\mathrm{491}}^1$

素因数の和:963

約数の個数: 72

約数和(自身を含む): 123033456

約数和(自身を除く): 82643796

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 457, 491, 914, 982, 1371, 1473, 1828, 1964, 2285, 2455, 2742, 2946, 4113, 4419, 4570, 4910, 5484, 5892, 6855, 7365, 8226, 8838, 9140, 9820, 13710, 14730, 16452, 17676, 20565, 22095, 27420, 29460, 41130, 44190, 82260, 88380, 224387, 448774, 673161, 897548, 1121935, 1346322, 2019483, 2243870, 2692644, 3365805, 4038966, 4487740, 6731610, 8077932, 10097415, 13463220, 20194830, 40389660]

約数ペア:

[(1, 40389660), (2, 20194830), (3, 13463220), (4, 10097415), (5, 8077932), (6, 6731610), (9, 4487740), (10, 4038966), (12, 3365805), (15, 2692644), (18, 2243870), (20, 2019483), (30, 1346322), (36, 1121935), (45, 897548), (60, 673161), (90, 448774), (180, 224387), (457, 88380), (491, 82260), (914, 44190), (982, 41130), (1371, 29460), (1473, 27420), (1828, 22095), (1964, 20565), (2285, 17676), (2455, 16452), (2742, 14730), (2946, 13710), (4113, 9820), (4419, 9140), (4570, 8838), (4910, 8226), (5484, 7365), (5892, 6855)]