28243880

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{5309}}^1$

素因数の和:5346

約数の個数: 64

約数和(自身を含む): 76464000

約数和(自身を除く): 48220120

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 19, 20, 28, 35, 38, 40, 56, 70, 76, 95, 133, 140, 152, 190, 266, 280, 380, 532, 665, 760, 1064, 1330, 2660, 5309, 5320, 10618, 21236, 26545, 37163, 42472, 53090, 74326, 100871, 106180, 148652, 185815, 201742, 212360, 297304, 371630, 403484, 504355, 706097, 743260, 806968, 1008710, 1412194, 1486520, 2017420, 2824388, 3530485, 4034840, 5648776, 7060970, 14121940, 28243880]

約数ペア:

[(1, 28243880), (2, 14121940), (4, 7060970), (5, 5648776), (7, 4034840), (8, 3530485), (10, 2824388), (14, 2017420), (19, 1486520), (20, 1412194), (28, 1008710), (35, 806968), (38, 743260), (40, 706097), (56, 504355), (70, 403484), (76, 371630), (95, 297304), (133, 212360), (140, 201742), (152, 185815), (190, 148652), (266, 106180), (280, 100871), (380, 74326), (532, 53090), (665, 42472), (760, 37163), (1064, 26545), (1330, 21236), (2660, 10618), (5309, 5320)]