16940280

素因数分解:

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

素因数の和:138

約数の個数: 192

約数和(自身を含む): 61395840

約数和(自身を除く): 44455560

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 40, 42, 43, 49, 56, 60, 67, 70, 84, 86, 98, 105, 120, 129, 134, 140, 147, 168, 172, 196, 201, 210, 215, 245, 258, 268, 280, 294, 301, 335, 344, 392, 402, 420, 430, 469, 490, 516, 536, 588, 602, 645, 670, 735, 804, 840, 860, 903, 938, 980, 1005, 1032, 1176, 1204, 1290, 1340, 1407, 1470, 1505, 1608, 1720, 1806, 1876, 1960, 2010, 2107, 2345, 2408, 2580, 2680, 2814, 2881, 2940, 3010, 3283, 3612, 3752, 4020, 4214, 4515, 4690, 5160, 5628, 5762, 5880, 6020, 6321, 6566, 7035, 7224, 8040, 8428, 8643, 9030, 9380, 9849, 10535, 11256, 11524, 12040, 12642, 13132, 14070, 14405, 16415, 16856, 17286, 18060, 18760, 19698, 20167, 21070, 23048, 25284, 26264, 28140, 28810, 31605, 32830, 34572, 36120, 39396, 40334, 42140, 43215, 49245, 50568, 56280, 57620, 60501, 63210, 65660, 69144, 78792, 80668, 84280, 86430, 98490, 100835, 115240, 121002, 126420, 131320, 141169, 161336, 172860, 196980, 201670, 242004, 252840, 282338, 302505, 345720, 393960, 403340, 423507, 484008, 564676, 605010, 705845, 806680, 847014, 1129352, 1210020, 1411690, 1694028, 2117535, 2420040, 2823380, 3388056, 4235070, 5646760, 8470140, 16940280]

約数ペア:

[(1, 16940280), (2, 8470140), (3, 5646760), (4, 4235070), (5, 3388056), (6, 2823380), (7, 2420040), (8, 2117535), (10, 1694028), (12, 1411690), (14, 1210020), (15, 1129352), (20, 847014), (21, 806680), (24, 705845), (28, 605010), (30, 564676), (35, 484008), (40, 423507), (42, 403340), (43, 393960), (49, 345720), (56, 302505), (60, 282338), (67, 252840), (70, 242004), (84, 201670), (86, 196980), (98, 172860), (105, 161336), (120, 141169), (129, 131320), (134, 126420), (140, 121002), (147, 115240), (168, 100835), (172, 98490), (196, 86430), (201, 84280), (210, 80668), (215, 78792), (245, 69144), (258, 65660), (268, 63210), (280, 60501), (294, 57620), (301, 56280), (335, 50568), (344, 49245), (392, 43215), (402, 42140), (420, 40334), (430, 39396), (469, 36120), (490, 34572), (516, 32830), (536, 31605), (588, 28810), (602, 28140), (645, 26264), (670, 25284), (735, 23048), (804, 21070), (840, 20167), (860, 19698), (903, 18760), (938, 18060), (980, 17286), (1005, 16856), (1032, 16415), (1176, 14405), (1204, 14070), (1290, 13132), (1340, 12642), (1407, 12040), (1470, 11524), (1505, 11256), (1608, 10535), (1720, 9849), (1806, 9380), (1876, 9030), (1960, 8643), (2010, 8428), (2107, 8040), (2345, 7224), (2408, 7035), (2580, 6566), (2680, 6321), (2814, 6020), (2881, 5880), (2940, 5762), (3010, 5628), (3283, 5160), (3612, 4690), (3752, 4515), (4020, 4214)]