18724140

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{211}}^1$

素因数の和:272

約数の個数: 144

約数和(自身を含む): 62506080

約数和(自身を除く): 43781940

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 17, 18, 20, 29, 30, 34, 36, 45, 51, 58, 60, 68, 85, 87, 90, 102, 116, 145, 153, 170, 174, 180, 204, 211, 255, 261, 290, 306, 340, 348, 422, 435, 493, 510, 522, 580, 612, 633, 765, 844, 870, 986, 1020, 1044, 1055, 1266, 1305, 1479, 1530, 1740, 1899, 1972, 2110, 2465, 2532, 2610, 2958, 3060, 3165, 3587, 3798, 4220, 4437, 4930, 5220, 5916, 6119, 6330, 7174, 7395, 7596, 8874, 9495, 9860, 10761, 12238, 12660, 14348, 14790, 17748, 17935, 18357, 18990, 21522, 22185, 24476, 29580, 30595, 32283, 35870, 36714, 37980, 43044, 44370, 53805, 55071, 61190, 64566, 71740, 73428, 88740, 91785, 104023, 107610, 110142, 122380, 129132, 161415, 183570, 208046, 215220, 220284, 275355, 312069, 322830, 367140, 416092, 520115, 550710, 624138, 645660, 936207, 1040230, 1101420, 1248276, 1560345, 1872414, 2080460, 3120690, 3744828, 4681035, 6241380, 9362070, 18724140]

約数ペア:

[(1, 18724140), (2, 9362070), (3, 6241380), (4, 4681035), (5, 3744828), (6, 3120690), (9, 2080460), (10, 1872414), (12, 1560345), (15, 1248276), (17, 1101420), (18, 1040230), (20, 936207), (29, 645660), (30, 624138), (34, 550710), (36, 520115), (45, 416092), (51, 367140), (58, 322830), (60, 312069), (68, 275355), (85, 220284), (87, 215220), (90, 208046), (102, 183570), (116, 161415), (145, 129132), (153, 122380), (170, 110142), (174, 107610), (180, 104023), (204, 91785), (211, 88740), (255, 73428), (261, 71740), (290, 64566), (306, 61190), (340, 55071), (348, 53805), (422, 44370), (435, 43044), (493, 37980), (510, 36714), (522, 35870), (580, 32283), (612, 30595), (633, 29580), (765, 24476), (844, 22185), (870, 21522), (986, 18990), (1020, 18357), (1044, 17935), (1055, 17748), (1266, 14790), (1305, 14348), (1479, 12660), (1530, 12238), (1740, 10761), (1899, 9860), (1972, 9495), (2110, 8874), (2465, 7596), (2532, 7395), (2610, 7174), (2958, 6330), (3060, 6119), (3165, 5916), (3587, 5220), (3798, 4930), (4220, 4437)]