209403180

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{8747}}^1$

素因数の和:8788

約数の個数: 144

約数和(自身を含む): 764225280

約数和(自身を除く): 554822100

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 19, 20, 21, 28, 30, 35, 36, 38, 42, 45, 57, 60, 63, 70, 76, 84, 90, 95, 105, 114, 126, 133, 140, 171, 180, 190, 210, 228, 252, 266, 285, 315, 342, 380, 399, 420, 532, 570, 630, 665, 684, 798, 855, 1140, 1197, 1260, 1330, 1596, 1710, 1995, 2394, 2660, 3420, 3990, 4788, 5985, 7980, 8747, 11970, 17494, 23940, 26241, 34988, 43735, 52482, 61229, 78723, 87470, 104964, 122458, 131205, 157446, 166193, 174940, 183687, 244916, 262410, 306145, 314892, 332386, 367374, 393615, 498579, 524820, 551061, 612290, 664772, 734748, 787230, 830965, 918435, 997158, 1102122, 1163351, 1224580, 1495737, 1574460, 1661930, 1836870, 1994316, 2204244, 2326702, 2492895, 2755305, 2991474, 3323860, 3490053, 3673740, 4653404, 4985790, 5510610, 5816755, 5982948, 6980106, 7478685, 9971580, 10470159, 11021220, 11633510, 13960212, 14957370, 17450265, 20940318, 23267020, 29914740, 34900530, 41880636, 52350795, 69801060, 104701590, 209403180]

約数ペア:

[(1, 209403180), (2, 104701590), (3, 69801060), (4, 52350795), (5, 41880636), (6, 34900530), (7, 29914740), (9, 23267020), (10, 20940318), (12, 17450265), (14, 14957370), (15, 13960212), (18, 11633510), (19, 11021220), (20, 10470159), (21, 9971580), (28, 7478685), (30, 6980106), (35, 5982948), (36, 5816755), (38, 5510610), (42, 4985790), (45, 4653404), (57, 3673740), (60, 3490053), (63, 3323860), (70, 2991474), (76, 2755305), (84, 2492895), (90, 2326702), (95, 2204244), (105, 1994316), (114, 1836870), (126, 1661930), (133, 1574460), (140, 1495737), (171, 1224580), (180, 1163351), (190, 1102122), (210, 997158), (228, 918435), (252, 830965), (266, 787230), (285, 734748), (315, 664772), (342, 612290), (380, 551061), (399, 524820), (420, 498579), (532, 393615), (570, 367374), (630, 332386), (665, 314892), (684, 306145), (798, 262410), (855, 244916), (1140, 183687), (1197, 174940), (1260, 166193), (1330, 157446), (1596, 131205), (1710, 122458), (1995, 104964), (2394, 87470), (2660, 78723), (3420, 61229), (3990, 52482), (4788, 43735), (5985, 34988), (7980, 26241), (8747, 23940), (11970, 17494)]