18455385

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{43}}^1\times {\mathrm{71}}^1$

素因数の和:166

約数の個数: 64

約数和(自身を含む): 34062336

約数和(自身を除く): 15606951

約数列:

[1, 3, 5, 13, 15, 31, 39, 43, 65, 71, 93, 129, 155, 195, 213, 215, 355, 403, 465, 559, 645, 923, 1065, 1209, 1333, 1677, 2015, 2201, 2769, 2795, 3053, 3999, 4615, 6045, 6603, 6665, 8385, 9159, 11005, 13845, 15265, 17329, 19995, 28613, 33015, 39689, 45795, 51987, 85839, 86645, 94643, 119067, 143065, 198445, 259935, 283929, 429195, 473215, 595335, 1230359, 1419645, 3691077, 6151795, 18455385]

約数ペア:

[(1, 18455385), (3, 6151795), (5, 3691077), (13, 1419645), (15, 1230359), (31, 595335), (39, 473215), (43, 429195), (65, 283929), (71, 259935), (93, 198445), (129, 143065), (155, 119067), (195, 94643), (213, 86645), (215, 85839), (355, 51987), (403, 45795), (465, 39689), (559, 33015), (645, 28613), (923, 19995), (1065, 17329), (1209, 15265), (1333, 13845), (1677, 11005), (2015, 9159), (2201, 8385), (2769, 6665), (2795, 6603), (3053, 6045), (3999, 4615)]