40644540

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{349}}^1\times {\mathrm{647}}^1$

素因数の和:1011

約数の個数: 72

約数和(自身を含む): 123832800

約数和(自身を除く): 83188260

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 349, 647, 698, 1047, 1294, 1396, 1745, 1941, 2094, 2588, 3141, 3235, 3490, 3882, 4188, 5235, 5823, 6282, 6470, 6980, 7764, 9705, 10470, 11646, 12564, 12940, 15705, 19410, 20940, 23292, 29115, 31410, 38820, 58230, 62820, 116460, 225803, 451606, 677409, 903212, 1129015, 1354818, 2032227, 2258030, 2709636, 3387045, 4064454, 4516060, 6774090, 8128908, 10161135, 13548180, 20322270, 40644540]

約数ペア:

[(1, 40644540), (2, 20322270), (3, 13548180), (4, 10161135), (5, 8128908), (6, 6774090), (9, 4516060), (10, 4064454), (12, 3387045), (15, 2709636), (18, 2258030), (20, 2032227), (30, 1354818), (36, 1129015), (45, 903212), (60, 677409), (90, 451606), (180, 225803), (349, 116460), (647, 62820), (698, 58230), (1047, 38820), (1294, 31410), (1396, 29115), (1745, 23292), (1941, 20940), (2094, 19410), (2588, 15705), (3141, 12940), (3235, 12564), (3490, 11646), (3882, 10470), (4188, 9705), (5235, 7764), (5823, 6980), (6282, 6470)]