20965968

素因数分解:

$2^4\times 3^2\times {\mathrm{19}}^1\times {\mathrm{79}}^1\times {\mathrm{97}}^1$

素因数の和:209

約数の個数: 120

約数和(自身を含む): 63190400

約数和(自身を除く): 42224432

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 19, 24, 36, 38, 48, 57, 72, 76, 79, 97, 114, 144, 152, 158, 171, 194, 228, 237, 291, 304, 316, 342, 388, 456, 474, 582, 632, 684, 711, 776, 873, 912, 948, 1164, 1264, 1368, 1422, 1501, 1552, 1746, 1843, 1896, 2328, 2736, 2844, 3002, 3492, 3686, 3792, 4503, 4656, 5529, 5688, 6004, 6984, 7372, 7663, 9006, 11058, 11376, 12008, 13509, 13968, 14744, 15326, 16587, 18012, 22116, 22989, 24016, 27018, 29488, 30652, 33174, 36024, 44232, 45978, 54036, 61304, 66348, 68967, 72048, 88464, 91956, 108072, 122608, 132696, 137934, 145597, 183912, 216144, 265392, 275868, 291194, 367824, 436791, 551736, 582388, 873582, 1103472, 1164776, 1310373, 1747164, 2329552, 2620746, 3494328, 5241492, 6988656, 10482984, 20965968]

約数ペア:

[(1, 20965968), (2, 10482984), (3, 6988656), (4, 5241492), (6, 3494328), (8, 2620746), (9, 2329552), (12, 1747164), (16, 1310373), (18, 1164776), (19, 1103472), (24, 873582), (36, 582388), (38, 551736), (48, 436791), (57, 367824), (72, 291194), (76, 275868), (79, 265392), (97, 216144), (114, 183912), (144, 145597), (152, 137934), (158, 132696), (171, 122608), (194, 108072), (228, 91956), (237, 88464), (291, 72048), (304, 68967), (316, 66348), (342, 61304), (388, 54036), (456, 45978), (474, 44232), (582, 36024), (632, 33174), (684, 30652), (711, 29488), (776, 27018), (873, 24016), (912, 22989), (948, 22116), (1164, 18012), (1264, 16587), (1368, 15326), (1422, 14744), (1501, 13968), (1552, 13509), (1746, 12008), (1843, 11376), (1896, 11058), (2328, 9006), (2736, 7663), (2844, 7372), (3002, 6984), (3492, 6004), (3686, 5688), (3792, 5529), (4503, 4656)]