18151980

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{3929}}^1$

素因数の和:3959

約数の個数: 96

約数和(自身を含む): 63383040

約数和(自身を除く): 45231060

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 11, 12, 14, 15, 20, 21, 22, 28, 30, 33, 35, 42, 44, 55, 60, 66, 70, 77, 84, 105, 110, 132, 140, 154, 165, 210, 220, 231, 308, 330, 385, 420, 462, 660, 770, 924, 1155, 1540, 2310, 3929, 4620, 7858, 11787, 15716, 19645, 23574, 27503, 39290, 43219, 47148, 55006, 58935, 78580, 82509, 86438, 110012, 117870, 129657, 137515, 165018, 172876, 216095, 235740, 259314, 275030, 302533, 330036, 412545, 432190, 518628, 550060, 605066, 648285, 825090, 864380, 907599, 1210132, 1296570, 1512665, 1650180, 1815198, 2593140, 3025330, 3630396, 4537995, 6050660, 9075990, 18151980]

約数ペア:

[(1, 18151980), (2, 9075990), (3, 6050660), (4, 4537995), (5, 3630396), (6, 3025330), (7, 2593140), (10, 1815198), (11, 1650180), (12, 1512665), (14, 1296570), (15, 1210132), (20, 907599), (21, 864380), (22, 825090), (28, 648285), (30, 605066), (33, 550060), (35, 518628), (42, 432190), (44, 412545), (55, 330036), (60, 302533), (66, 275030), (70, 259314), (77, 235740), (84, 216095), (105, 172876), (110, 165018), (132, 137515), (140, 129657), (154, 117870), (165, 110012), (210, 86438), (220, 82509), (231, 78580), (308, 58935), (330, 55006), (385, 47148), (420, 43219), (462, 39290), (660, 27503), (770, 23574), (924, 19645), (1155, 15716), (1540, 11787), (2310, 7858), (3929, 4620)]