26861960

素因数分解:

$2^3\times 5^1\times {\mathrm{61}}^1\times {\mathrm{101}}^1\times {\mathrm{109}}^1$

素因数の和:282

約数の個数: 64

約数和(自身を含む): 62607600

約数和(自身を除く): 35745640

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 61, 101, 109, 122, 202, 218, 244, 305, 404, 436, 488, 505, 545, 610, 808, 872, 1010, 1090, 1220, 2020, 2180, 2440, 4040, 4360, 6161, 6649, 11009, 12322, 13298, 22018, 24644, 26596, 30805, 33245, 44036, 49288, 53192, 55045, 61610, 66490, 88072, 110090, 123220, 132980, 220180, 246440, 265960, 440360, 671549, 1343098, 2686196, 3357745, 5372392, 6715490, 13430980, 26861960]

約数ペア:

[(1, 26861960), (2, 13430980), (4, 6715490), (5, 5372392), (8, 3357745), (10, 2686196), (20, 1343098), (40, 671549), (61, 440360), (101, 265960), (109, 246440), (122, 220180), (202, 132980), (218, 123220), (244, 110090), (305, 88072), (404, 66490), (436, 61610), (488, 55045), (505, 53192), (545, 49288), (610, 44036), (808, 33245), (872, 30805), (1010, 26596), (1090, 24644), (1220, 22018), (2020, 13298), (2180, 12322), (2440, 11009), (4040, 6649), (4360, 6161)]