50120140

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{199}}^1\times {\mathrm{257}}^1$

素因数の和:479

約数の個数: 72

約数和(自身を含む): 123530400

約数和(自身を除く): 73410260

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 199, 245, 257, 398, 490, 514, 796, 980, 995, 1028, 1285, 1393, 1799, 1990, 2570, 2786, 3598, 3980, 5140, 5572, 6965, 7196, 8995, 9751, 12593, 13930, 17990, 19502, 25186, 27860, 35980, 39004, 48755, 50372, 51143, 62965, 97510, 102286, 125930, 195020, 204572, 251860, 255715, 358001, 511430, 716002, 1022860, 1432004, 1790005, 2506007, 3580010, 5012014, 7160020, 10024028, 12530035, 25060070, 50120140]

約数ペア:

[(1, 50120140), (2, 25060070), (4, 12530035), (5, 10024028), (7, 7160020), (10, 5012014), (14, 3580010), (20, 2506007), (28, 1790005), (35, 1432004), (49, 1022860), (70, 716002), (98, 511430), (140, 358001), (196, 255715), (199, 251860), (245, 204572), (257, 195020), (398, 125930), (490, 102286), (514, 97510), (796, 62965), (980, 51143), (995, 50372), (1028, 48755), (1285, 39004), (1393, 35980), (1799, 27860), (1990, 25186), (2570, 19502), (2786, 17990), (3598, 13930), (3980, 12593), (5140, 9751), (5572, 8995), (6965, 7196)]