31857660

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{359}}^1$

素因数の和:420

約数の個数: 144

約数和(自身を含む): 106142400

約数和(自身を除く): 74284740

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, 255, 261, 290, 306, 340, 348, 359, 435, 493, 510, 522, 580, 612, 718, 765, 870, 986, 1020, 1044, 1077, 1305, 1436, 1479, 1530, 1740, 1795, 1972, 2154, 2465, 2610, 2958, 3060, 3231, 3590, 4308, 4437, 4930, 5220, 5385, 5916, 6103, 6462, 7180, 7395, 8874, 9860, 10411, 10770, 12206, 12924, 14790, 16155, 17748, 18309, 20822, 21540, 22185, 24412, 29580, 30515, 31233, 32310, 36618, 41644, 44370, 52055, 54927, 61030, 62466, 64620, 73236, 88740, 91545, 93699, 104110, 109854, 122060, 124932, 156165, 176987, 183090, 187398, 208220, 219708, 274635, 312330, 353974, 366180, 374796, 468495, 530961, 549270, 624660, 707948, 884935, 936990, 1061922, 1098540, 1592883, 1769870, 1873980, 2123844, 2654805, 3185766, 3539740, 5309610, 6371532, 7964415, 10619220, 15928830, 31857660]

約数ペア:

[(1, 31857660), (2, 15928830), (3, 10619220), (4, 7964415), (5, 6371532), (6, 5309610), (9, 3539740), (10, 3185766), (12, 2654805), (15, 2123844), (17, 1873980), (18, 1769870), (20, 1592883), (29, 1098540), (30, 1061922), (34, 936990), (36, 884935), (45, 707948), (51, 624660), (58, 549270), (60, 530961), (68, 468495), (85, 374796), (87, 366180), (90, 353974), (102, 312330), (116, 274635), (145, 219708), (153, 208220), (170, 187398), (174, 183090), (180, 176987), (204, 156165), (255, 124932), (261, 122060), (290, 109854), (306, 104110), (340, 93699), (348, 91545), (359, 88740), (435, 73236), (493, 64620), (510, 62466), (522, 61030), (580, 54927), (612, 52055), (718, 44370), (765, 41644), (870, 36618), (986, 32310), (1020, 31233), (1044, 30515), (1077, 29580), (1305, 24412), (1436, 22185), (1479, 21540), (1530, 20822), (1740, 18309), (1795, 17748), (1972, 16155), (2154, 14790), (2465, 12924), (2610, 12206), (2958, 10770), (3060, 10411), (3231, 9860), (3590, 8874), (4308, 7395), (4437, 7180), (4930, 6462), (5220, 6103), (5385, 5916)]