8456140

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{17}}^2\times {\mathrm{19}}^1$

素因数の和:80

約数の個数: 144

約数和(自身を含む): 24756480

約数和(自身を除く): 16300340

約数列:

[1, 2, 4, 5, 7, 10, 11, 14, 17, 19, 20, 22, 28, 34, 35, 38, 44, 55, 68, 70, 76, 77, 85, 95, 110, 119, 133, 140, 154, 170, 187, 190, 209, 220, 238, 266, 289, 308, 323, 340, 374, 380, 385, 418, 476, 532, 578, 595, 646, 665, 748, 770, 836, 935, 1045, 1156, 1190, 1292, 1309, 1330, 1445, 1463, 1540, 1615, 1870, 2023, 2090, 2261, 2380, 2618, 2660, 2890, 2926, 3179, 3230, 3553, 3740, 4046, 4180, 4522, 5236, 5491, 5780, 5852, 6358, 6460, 6545, 7106, 7315, 8092, 9044, 10115, 10982, 11305, 12716, 13090, 14212, 14630, 15895, 17765, 20230, 21964, 22253, 22610, 24871, 26180, 27455, 29260, 31790, 35530, 38437, 40460, 44506, 45220, 49742, 54910, 60401, 63580, 71060, 76874, 89012, 99484, 109820, 111265, 120802, 124355, 153748, 192185, 222530, 241604, 248710, 302005, 384370, 422807, 445060, 497420, 604010, 768740, 845614, 1208020, 1691228, 2114035, 4228070, 8456140]

約数ペア:

[(1, 8456140), (2, 4228070), (4, 2114035), (5, 1691228), (7, 1208020), (10, 845614), (11, 768740), (14, 604010), (17, 497420), (19, 445060), (20, 422807), (22, 384370), (28, 302005), (34, 248710), (35, 241604), (38, 222530), (44, 192185), (55, 153748), (68, 124355), (70, 120802), (76, 111265), (77, 109820), (85, 99484), (95, 89012), (110, 76874), (119, 71060), (133, 63580), (140, 60401), (154, 54910), (170, 49742), (187, 45220), (190, 44506), (209, 40460), (220, 38437), (238, 35530), (266, 31790), (289, 29260), (308, 27455), (323, 26180), (340, 24871), (374, 22610), (380, 22253), (385, 21964), (418, 20230), (476, 17765), (532, 15895), (578, 14630), (595, 14212), (646, 13090), (665, 12716), (748, 11305), (770, 10982), (836, 10115), (935, 9044), (1045, 8092), (1156, 7315), (1190, 7106), (1292, 6545), (1309, 6460), (1330, 6358), (1445, 5852), (1463, 5780), (1540, 5491), (1615, 5236), (1870, 4522), (2023, 4180), (2090, 4046), (2261, 3740), (2380, 3553), (2618, 3230), (2660, 3179), (2890, 2926)]