193991980

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{15227}}^1$

素因数の和:15263

約数の個数: 72

約数和(自身を含む): 510381648

約数和(自身を除く): 316389668

約数列:

[1, 2, 4, 5, 7, 10, 13, 14, 20, 26, 28, 35, 49, 52, 65, 70, 91, 98, 130, 140, 182, 196, 245, 260, 364, 455, 490, 637, 910, 980, 1274, 1820, 2548, 3185, 6370, 12740, 15227, 30454, 60908, 76135, 106589, 152270, 197951, 213178, 304540, 395902, 426356, 532945, 746123, 791804, 989755, 1065890, 1385657, 1492246, 1979510, 2131780, 2771314, 2984492, 3730615, 3959020, 5542628, 6928285, 7461230, 9699599, 13856570, 14922460, 19399198, 27713140, 38798396, 48497995, 96995990, 193991980]

約数ペア:

[(1, 193991980), (2, 96995990), (4, 48497995), (5, 38798396), (7, 27713140), (10, 19399198), (13, 14922460), (14, 13856570), (20, 9699599), (26, 7461230), (28, 6928285), (35, 5542628), (49, 3959020), (52, 3730615), (65, 2984492), (70, 2771314), (91, 2131780), (98, 1979510), (130, 1492246), (140, 1385657), (182, 1065890), (196, 989755), (245, 791804), (260, 746123), (364, 532945), (455, 426356), (490, 395902), (637, 304540), (910, 213178), (980, 197951), (1274, 152270), (1820, 106589), (2548, 76135), (3185, 60908), (6370, 30454), (12740, 15227)]