25831640

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{829}}^1$

素因数の和:900

約数の個数: 64

約数和(自身を含む): 62748000

約数和(自身を除く): 36916360

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 41, 76, 82, 95, 152, 164, 190, 205, 328, 380, 410, 760, 779, 820, 829, 1558, 1640, 1658, 3116, 3316, 3895, 4145, 6232, 6632, 7790, 8290, 15580, 15751, 16580, 31160, 31502, 33160, 33989, 63004, 67978, 78755, 126008, 135956, 157510, 169945, 271912, 315020, 339890, 630040, 645791, 679780, 1291582, 1359560, 2583164, 3228955, 5166328, 6457910, 12915820, 25831640]

約数ペア:

[(1, 25831640), (2, 12915820), (4, 6457910), (5, 5166328), (8, 3228955), (10, 2583164), (19, 1359560), (20, 1291582), (38, 679780), (40, 645791), (41, 630040), (76, 339890), (82, 315020), (95, 271912), (152, 169945), (164, 157510), (190, 135956), (205, 126008), (328, 78755), (380, 67978), (410, 63004), (760, 33989), (779, 33160), (820, 31502), (829, 31160), (1558, 16580), (1640, 15751), (1658, 15580), (3116, 8290), (3316, 7790), (3895, 6632), (4145, 6232)]