20168637560

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{173}}^1\times {\mathrm{211}}^1\times {\mathrm{727}}^1$

素因数の和:1141

約数の個数: 128

約数和(自身を含む): 48338035200

約数和(自身を除く): 28169397640

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 76, 95, 152, 173, 190, 211, 346, 380, 422, 692, 727, 760, 844, 865, 1055, 1384, 1454, 1688, 1730, 2110, 2908, 3287, 3460, 3635, 4009, 4220, 5816, 6574, 6920, 7270, 8018, 8440, 13148, 13813, 14540, 16036, 16435, 20045, 26296, 27626, 29080, 32072, 32870, 36503, 40090, 55252, 65740, 69065, 73006, 80180, 110504, 125771, 131480, 138130, 146012, 153397, 160360, 182515, 251542, 276260, 292024, 306794, 365030, 503084, 552520, 613588, 628855, 693557, 730060, 766985, 1006168, 1227176, 1257710, 1387114, 1460120, 1533970, 2389649, 2515420, 2774228, 2914543, 3067940, 3467785, 4779298, 5030840, 5548456, 5829086, 6135880, 6935570, 9558596, 11658172, 11948245, 13871140, 14572715, 19117192, 23316344, 23896490, 26537681, 27742280, 29145430, 47792980, 53075362, 58290860, 95585960, 106150724, 116581720, 132688405, 212301448, 265376810, 504215939, 530753620, 1008431878, 1061507240, 2016863756, 2521079695, 4033727512, 5042159390, 10084318780, 20168637560]

約数ペア:

[(1, 20168637560), (2, 10084318780), (4, 5042159390), (5, 4033727512), (8, 2521079695), (10, 2016863756), (19, 1061507240), (20, 1008431878), (38, 530753620), (40, 504215939), (76, 265376810), (95, 212301448), (152, 132688405), (173, 116581720), (190, 106150724), (211, 95585960), (346, 58290860), (380, 53075362), (422, 47792980), (692, 29145430), (727, 27742280), (760, 26537681), (844, 23896490), (865, 23316344), (1055, 19117192), (1384, 14572715), (1454, 13871140), (1688, 11948245), (1730, 11658172), (2110, 9558596), (2908, 6935570), (3287, 6135880), (3460, 5829086), (3635, 5548456), (4009, 5030840), (4220, 4779298), (5816, 3467785), (6574, 3067940), (6920, 2914543), (7270, 2774228), (8018, 2515420), (8440, 2389649), (13148, 1533970), (13813, 1460120), (14540, 1387114), (16036, 1257710), (16435, 1227176), (20045, 1006168), (26296, 766985), (27626, 730060), (29080, 693557), (32072, 628855), (32870, 613588), (36503, 552520), (40090, 503084), (55252, 365030), (65740, 306794), (69065, 292024), (73006, 276260), (80180, 251542), (110504, 182515), (125771, 160360), (131480, 153397), (138130, 146012)]