19611540

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^2\times {\mathrm{29}}^1$

素因数の和:91

約数の個数: 216

約数和(自身を含む): 70401240

約数和(自身を除く): 50789700

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 13, 15, 17, 18, 20, 26, 29, 30, 34, 36, 39, 45, 51, 52, 58, 60, 65, 68, 78, 85, 87, 90, 102, 116, 117, 130, 145, 153, 156, 170, 174, 180, 195, 204, 221, 234, 255, 260, 261, 289, 290, 306, 340, 348, 377, 390, 435, 442, 468, 493, 510, 522, 578, 580, 585, 612, 663, 754, 765, 780, 867, 870, 884, 986, 1020, 1044, 1105, 1131, 1156, 1170, 1305, 1326, 1445, 1479, 1508, 1530, 1734, 1740, 1885, 1972, 1989, 2210, 2262, 2340, 2465, 2601, 2610, 2652, 2890, 2958, 3060, 3315, 3393, 3468, 3757, 3770, 3978, 4335, 4420, 4437, 4524, 4930, 5202, 5220, 5655, 5780, 5916, 6409, 6630, 6786, 7395, 7514, 7540, 7956, 8381, 8670, 8874, 9860, 9945, 10404, 11271, 11310, 12818, 13005, 13260, 13572, 14790, 15028, 16762, 16965, 17340, 17748, 18785, 19227, 19890, 22185, 22542, 22620, 25143, 25636, 26010, 29580, 32045, 33524, 33813, 33930, 37570, 38454, 39780, 41905, 44370, 45084, 50286, 52020, 56355, 57681, 64090, 67626, 67860, 75140, 75429, 76908, 83810, 88740, 96135, 100572, 108953, 112710, 115362, 125715, 128180, 135252, 150858, 167620, 169065, 192270, 217906, 225420, 230724, 251430, 288405, 301716, 326859, 338130, 377145, 384540, 435812, 502860, 544765, 576810, 653718, 676260, 754290, 980577, 1089530, 1153620, 1307436, 1508580, 1634295, 1961154, 2179060, 3268590, 3922308, 4902885, 6537180, 9805770, 19611540]

約数ペア:

[(1, 19611540), (2, 9805770), (3, 6537180), (4, 4902885), (5, 3922308), (6, 3268590), (9, 2179060), (10, 1961154), (12, 1634295), (13, 1508580), (15, 1307436), (17, 1153620), (18, 1089530), (20, 980577), (26, 754290), (29, 676260), (30, 653718), (34, 576810), (36, 544765), (39, 502860), (45, 435812), (51, 384540), (52, 377145), (58, 338130), (60, 326859), (65, 301716), (68, 288405), (78, 251430), (85, 230724), (87, 225420), (90, 217906), (102, 192270), (116, 169065), (117, 167620), (130, 150858), (145, 135252), (153, 128180), (156, 125715), (170, 115362), (174, 112710), (180, 108953), (195, 100572), (204, 96135), (221, 88740), (234, 83810), (255, 76908), (260, 75429), (261, 75140), (289, 67860), (290, 67626), (306, 64090), (340, 57681), (348, 56355), (377, 52020), (390, 50286), (435, 45084), (442, 44370), (468, 41905), (493, 39780), (510, 38454), (522, 37570), (578, 33930), (580, 33813), (585, 33524), (612, 32045), (663, 29580), (754, 26010), (765, 25636), (780, 25143), (867, 22620), (870, 22542), (884, 22185), (986, 19890), (1020, 19227), (1044, 18785), (1105, 17748), (1131, 17340), (1156, 16965), (1170, 16762), (1305, 15028), (1326, 14790), (1445, 13572), (1479, 13260), (1508, 13005), (1530, 12818), (1734, 11310), (1740, 11271), (1885, 10404), (1972, 9945), (1989, 9860), (2210, 8874), (2262, 8670), (2340, 8381), (2465, 7956), (2601, 7540), (2610, 7514), (2652, 7395), (2890, 6786), (2958, 6630), (3060, 6409), (3315, 5916), (3393, 5780), (3468, 5655), (3757, 5220), (3770, 5202), (3978, 4930), (4335, 4524), (4420, 4437)]