121808680

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{43}}^1\times {\mathrm{67}}^1\times {\mathrm{151}}^1$

素因数の和:279

約数の個数: 128

約数和(自身を含む): 327444480

約数和(自身を除く): 205635800

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 43, 56, 67, 70, 86, 134, 140, 151, 172, 215, 268, 280, 301, 302, 335, 344, 430, 469, 536, 602, 604, 670, 755, 860, 938, 1057, 1204, 1208, 1340, 1505, 1510, 1720, 1876, 2114, 2345, 2408, 2680, 2881, 3010, 3020, 3752, 4228, 4690, 5285, 5762, 6020, 6040, 6493, 8456, 9380, 10117, 10570, 11524, 12040, 12986, 14405, 18760, 20167, 20234, 21140, 23048, 25972, 28810, 32465, 40334, 40468, 42280, 45451, 50585, 51944, 57620, 64930, 70819, 80668, 80936, 90902, 100835, 101170, 115240, 129860, 141638, 161336, 181804, 201670, 202340, 227255, 259720, 283276, 354095, 363608, 403340, 404680, 435031, 454510, 566552, 708190, 806680, 870062, 909020, 1416380, 1740124, 1818040, 2175155, 2832760, 3045217, 3480248, 4350310, 6090434, 8700620, 12180868, 15226085, 17401240, 24361736, 30452170, 60904340, 121808680]

約数ペア:

[(1, 121808680), (2, 60904340), (4, 30452170), (5, 24361736), (7, 17401240), (8, 15226085), (10, 12180868), (14, 8700620), (20, 6090434), (28, 4350310), (35, 3480248), (40, 3045217), (43, 2832760), (56, 2175155), (67, 1818040), (70, 1740124), (86, 1416380), (134, 909020), (140, 870062), (151, 806680), (172, 708190), (215, 566552), (268, 454510), (280, 435031), (301, 404680), (302, 403340), (335, 363608), (344, 354095), (430, 283276), (469, 259720), (536, 227255), (602, 202340), (604, 201670), (670, 181804), (755, 161336), (860, 141638), (938, 129860), (1057, 115240), (1204, 101170), (1208, 100835), (1340, 90902), (1505, 80936), (1510, 80668), (1720, 70819), (1876, 64930), (2114, 57620), (2345, 51944), (2408, 50585), (2680, 45451), (2881, 42280), (3010, 40468), (3020, 40334), (3752, 32465), (4228, 28810), (4690, 25972), (5285, 23048), (5762, 21140), (6020, 20234), (6040, 20167), (6493, 18760), (8456, 14405), (9380, 12986), (10117, 12040), (10570, 11524)]