20187631480

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{89}}^1\times {\mathrm{157}}^1\times {\mathrm{1901}}^1$

素因数の和:2177

約数の個数: 128

約数和(自身を含む): 48683592000

約数和(自身を除く): 28495960520

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 76, 89, 95, 152, 157, 178, 190, 314, 356, 380, 445, 628, 712, 760, 785, 890, 1256, 1570, 1691, 1780, 1901, 2983, 3140, 3382, 3560, 3802, 5966, 6280, 6764, 7604, 8455, 9505, 11932, 13528, 13973, 14915, 15208, 16910, 19010, 23864, 27946, 29830, 33820, 36119, 38020, 55892, 59660, 67640, 69865, 72238, 76040, 111784, 119320, 139730, 144476, 169189, 180595, 265487, 279460, 288952, 298457, 338378, 361190, 530974, 558920, 596914, 676756, 722380, 845945, 1061948, 1193828, 1327435, 1353512, 1444760, 1492285, 1691890, 2123896, 2387656, 2654870, 2984570, 3214591, 3383780, 5309740, 5670683, 5969140, 6429182, 6767560, 10619480, 11341366, 11938280, 12858364, 16072955, 22682732, 25716728, 26562673, 28353415, 32145910, 45365464, 53125346, 56706830, 64291820, 106250692, 113413660, 128583640, 132813365, 212501384, 226827320, 265626730, 504690787, 531253460, 1009381574, 1062506920, 2018763148, 2523453935, 4037526296, 5046907870, 10093815740, 20187631480]

約数ペア:

[(1, 20187631480), (2, 10093815740), (4, 5046907870), (5, 4037526296), (8, 2523453935), (10, 2018763148), (19, 1062506920), (20, 1009381574), (38, 531253460), (40, 504690787), (76, 265626730), (89, 226827320), (95, 212501384), (152, 132813365), (157, 128583640), (178, 113413660), (190, 106250692), (314, 64291820), (356, 56706830), (380, 53125346), (445, 45365464), (628, 32145910), (712, 28353415), (760, 26562673), (785, 25716728), (890, 22682732), (1256, 16072955), (1570, 12858364), (1691, 11938280), (1780, 11341366), (1901, 10619480), (2983, 6767560), (3140, 6429182), (3382, 5969140), (3560, 5670683), (3802, 5309740), (5966, 3383780), (6280, 3214591), (6764, 2984570), (7604, 2654870), (8455, 2387656), (9505, 2123896), (11932, 1691890), (13528, 1492285), (13973, 1444760), (14915, 1353512), (15208, 1327435), (16910, 1193828), (19010, 1061948), (23864, 845945), (27946, 722380), (29830, 676756), (33820, 596914), (36119, 558920), (38020, 530974), (55892, 361190), (59660, 338378), (67640, 298457), (69865, 288952), (72238, 279460), (76040, 265487), (111784, 180595), (119320, 169189), (139730, 144476)]