20709468

素因数分解:

$2^2\times 3^2\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{137}}^1$

素因数の和:196

約数の個数: 144

約数和(自身を含む): 63292320

約数和(自身を除く): 42582852

約数列:

[1, 2, 3, 4, 6, 9, 12, 13, 17, 18, 19, 26, 34, 36, 38, 39, 51, 52, 57, 68, 76, 78, 102, 114, 117, 137, 153, 156, 171, 204, 221, 228, 234, 247, 274, 306, 323, 342, 411, 442, 468, 494, 548, 612, 646, 663, 684, 741, 822, 884, 969, 988, 1233, 1292, 1326, 1482, 1644, 1781, 1938, 1989, 2223, 2329, 2466, 2603, 2652, 2907, 2964, 3562, 3876, 3978, 4199, 4446, 4658, 4932, 5206, 5343, 5814, 6987, 7124, 7809, 7956, 8398, 8892, 9316, 10412, 10686, 11628, 12597, 13974, 15618, 16029, 16796, 20961, 21372, 23427, 25194, 27948, 30277, 31236, 32058, 33839, 37791, 41922, 44251, 46854, 50388, 60554, 64116, 67678, 75582, 83844, 88502, 90831, 93708, 101517, 121108, 132753, 135356, 151164, 177004, 181662, 203034, 265506, 272493, 304551, 363324, 398259, 406068, 531012, 544986, 575263, 609102, 796518, 1089972, 1150526, 1218204, 1593036, 1725789, 2301052, 3451578, 5177367, 6903156, 10354734, 20709468]

約数ペア:

[(1, 20709468), (2, 10354734), (3, 6903156), (4, 5177367), (6, 3451578), (9, 2301052), (12, 1725789), (13, 1593036), (17, 1218204), (18, 1150526), (19, 1089972), (26, 796518), (34, 609102), (36, 575263), (38, 544986), (39, 531012), (51, 406068), (52, 398259), (57, 363324), (68, 304551), (76, 272493), (78, 265506), (102, 203034), (114, 181662), (117, 177004), (137, 151164), (153, 135356), (156, 132753), (171, 121108), (204, 101517), (221, 93708), (228, 90831), (234, 88502), (247, 83844), (274, 75582), (306, 67678), (323, 64116), (342, 60554), (411, 50388), (442, 46854), (468, 44251), (494, 41922), (548, 37791), (612, 33839), (646, 32058), (663, 31236), (684, 30277), (741, 27948), (822, 25194), (884, 23427), (969, 21372), (988, 20961), (1233, 16796), (1292, 16029), (1326, 15618), (1482, 13974), (1644, 12597), (1781, 11628), (1938, 10686), (1989, 10412), (2223, 9316), (2329, 8892), (2466, 8398), (2603, 7956), (2652, 7809), (2907, 7124), (2964, 6987), (3562, 5814), (3876, 5343), (3978, 5206), (4199, 4932), (4446, 4658)]