248840720

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{5281}}^1$

素因数の和:5344

約数の個数: 80

約数和(自身を含む): 628769280

約数和(自身を除く): 379928560

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 31, 38, 40, 62, 76, 80, 95, 124, 152, 155, 190, 248, 304, 310, 380, 496, 589, 620, 760, 1178, 1240, 1520, 2356, 2480, 2945, 4712, 5281, 5890, 9424, 10562, 11780, 21124, 23560, 26405, 42248, 47120, 52810, 84496, 100339, 105620, 163711, 200678, 211240, 327422, 401356, 422480, 501695, 654844, 802712, 818555, 1003390, 1309688, 1605424, 1637110, 2006780, 2619376, 3110509, 3274220, 4013560, 6221018, 6548440, 8027120, 12442036, 13096880, 15552545, 24884072, 31105090, 49768144, 62210180, 124420360, 248840720]

約数ペア:

[(1, 248840720), (2, 124420360), (4, 62210180), (5, 49768144), (8, 31105090), (10, 24884072), (16, 15552545), (19, 13096880), (20, 12442036), (31, 8027120), (38, 6548440), (40, 6221018), (62, 4013560), (76, 3274220), (80, 3110509), (95, 2619376), (124, 2006780), (152, 1637110), (155, 1605424), (190, 1309688), (248, 1003390), (304, 818555), (310, 802712), (380, 654844), (496, 501695), (589, 422480), (620, 401356), (760, 327422), (1178, 211240), (1240, 200678), (1520, 163711), (2356, 105620), (2480, 100339), (2945, 84496), (4712, 52810), (5281, 47120), (5890, 42248), (9424, 26405), (10562, 23560), (11780, 21124)]