20238345520

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{71}}^1\times {\mathrm{187531}}^1$

素因数の和:187634

約数の個数: 80

約数和(自身を含む): 50228570880

約数和(自身を除く): 29990225360

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 38, 40, 71, 76, 80, 95, 142, 152, 190, 284, 304, 355, 380, 568, 710, 760, 1136, 1349, 1420, 1520, 2698, 2840, 5396, 5680, 6745, 10792, 13490, 21584, 26980, 53960, 107920, 187531, 375062, 750124, 937655, 1500248, 1875310, 3000496, 3563089, 3750620, 7126178, 7501240, 13314701, 14252356, 15002480, 17815445, 26629402, 28504712, 35630890, 53258804, 57009424, 66573505, 71261780, 106517608, 133147010, 142523560, 213035216, 252979319, 266294020, 285047120, 505958638, 532588040, 1011917276, 1065176080, 1264896595, 2023834552, 2529793190, 4047669104, 5059586380, 10119172760, 20238345520]

約数ペア:

[(1, 20238345520), (2, 10119172760), (4, 5059586380), (5, 4047669104), (8, 2529793190), (10, 2023834552), (16, 1264896595), (19, 1065176080), (20, 1011917276), (38, 532588040), (40, 505958638), (71, 285047120), (76, 266294020), (80, 252979319), (95, 213035216), (142, 142523560), (152, 133147010), (190, 106517608), (284, 71261780), (304, 66573505), (355, 57009424), (380, 53258804), (568, 35630890), (710, 28504712), (760, 26629402), (1136, 17815445), (1349, 15002480), (1420, 14252356), (1520, 13314701), (2698, 7501240), (2840, 7126178), (5396, 3750620), (5680, 3563089), (6745, 3000496), (10792, 1875310), (13490, 1500248), (21584, 937655), (26980, 750124), (53960, 375062), (107920, 187531)]