31581648

素因数分解:

$2^4\times 3^2\times 7^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{97}}^1$

素因数の和:154

約数の個数: 240

約数和(自身を含む): 113742720

約数和(自身を除く): 82161072

約数列:

[1, 2, 3, 4, 6, 7, 8, 9, 12, 14, 16, 17, 18, 19, 21, 24, 28, 34, 36, 38, 42, 48, 51, 56, 57, 63, 68, 72, 76, 84, 97, 102, 112, 114, 119, 126, 133, 136, 144, 152, 153, 168, 171, 194, 204, 228, 238, 252, 266, 272, 291, 304, 306, 323, 336, 342, 357, 388, 399, 408, 456, 476, 504, 532, 582, 612, 646, 679, 684, 714, 776, 798, 816, 873, 912, 952, 969, 1008, 1064, 1071, 1164, 1197, 1224, 1292, 1358, 1368, 1428, 1552, 1596, 1649, 1746, 1843, 1904, 1938, 2037, 2128, 2142, 2261, 2328, 2394, 2448, 2584, 2716, 2736, 2856, 2907, 3192, 3298, 3492, 3686, 3876, 4074, 4284, 4522, 4656, 4788, 4947, 5168, 5432, 5529, 5712, 5814, 6111, 6384, 6596, 6783, 6984, 7372, 7752, 8148, 8568, 9044, 9576, 9894, 10864, 11058, 11543, 11628, 12222, 12901, 13192, 13566, 13968, 14744, 14841, 15504, 16296, 16587, 17136, 18088, 19152, 19788, 20349, 22116, 23086, 23256, 24444, 25802, 26384, 27132, 29488, 29682, 31331, 32592, 33174, 34629, 36176, 38703, 39576, 40698, 44232, 46172, 46512, 48888, 51604, 54264, 59364, 62662, 66348, 69258, 77406, 79152, 81396, 88464, 92344, 93993, 97776, 103208, 103887, 108528, 116109, 118728, 125324, 132696, 138516, 154812, 162792, 184688, 187986, 206416, 207774, 219317, 232218, 237456, 250648, 265392, 277032, 281979, 309624, 325584, 375972, 415548, 438634, 464436, 501296, 554064, 563958, 619248, 657951, 751944, 831096, 877268, 928872, 1127916, 1315902, 1503888, 1662192, 1754536, 1857744, 1973853, 2255832, 2631804, 3509072, 3947706, 4511664, 5263608, 7895412, 10527216, 15790824, 31581648]

約数ペア:

[(1, 31581648), (2, 15790824), (3, 10527216), (4, 7895412), (6, 5263608), (7, 4511664), (8, 3947706), (9, 3509072), (12, 2631804), (14, 2255832), (16, 1973853), (17, 1857744), (18, 1754536), (19, 1662192), (21, 1503888), (24, 1315902), (28, 1127916), (34, 928872), (36, 877268), (38, 831096), (42, 751944), (48, 657951), (51, 619248), (56, 563958), (57, 554064), (63, 501296), (68, 464436), (72, 438634), (76, 415548), (84, 375972), (97, 325584), (102, 309624), (112, 281979), (114, 277032), (119, 265392), (126, 250648), (133, 237456), (136, 232218), (144, 219317), (152, 207774), (153, 206416), (168, 187986), (171, 184688), (194, 162792), (204, 154812), (228, 138516), (238, 132696), (252, 125324), (266, 118728), (272, 116109), (291, 108528), (304, 103887), (306, 103208), (323, 97776), (336, 93993), (342, 92344), (357, 88464), (388, 81396), (399, 79152), (408, 77406), (456, 69258), (476, 66348), (504, 62662), (532, 59364), (582, 54264), (612, 51604), (646, 48888), (679, 46512), (684, 46172), (714, 44232), (776, 40698), (798, 39576), (816, 38703), (873, 36176), (912, 34629), (952, 33174), (969, 32592), (1008, 31331), (1064, 29682), (1071, 29488), (1164, 27132), (1197, 26384), (1224, 25802), (1292, 24444), (1358, 23256), (1368, 23086), (1428, 22116), (1552, 20349), (1596, 19788), (1649, 19152), (1746, 18088), (1843, 17136), (1904, 16587), (1938, 16296), (2037, 15504), (2128, 14841), (2142, 14744), (2261, 13968), (2328, 13566), (2394, 13192), (2448, 12901), (2584, 12222), (2716, 11628), (2736, 11543), (2856, 11058), (2907, 10864), (3192, 9894), (3298, 9576), (3492, 9044), (3686, 8568), (3876, 8148), (4074, 7752), (4284, 7372), (4522, 6984), (4656, 6783), (4788, 6596), (4947, 6384), (5168, 6111), (5432, 5814), (5529, 5712)]