20648790

素因数分解:

$2^1\times 3^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{2467}}^1$

素因数の和:2514

約数の個数: 64

約数和(自身を含む): 56862720

約数和(自身を除く): 36213930

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 27, 30, 31, 45, 54, 62, 90, 93, 135, 155, 186, 270, 279, 310, 465, 558, 837, 930, 1395, 1674, 2467, 2790, 4185, 4934, 7401, 8370, 12335, 14802, 22203, 24670, 37005, 44406, 66609, 74010, 76477, 111015, 133218, 152954, 222030, 229431, 333045, 382385, 458862, 666090, 688293, 764770, 1147155, 1376586, 2064879, 2294310, 3441465, 4129758, 6882930, 10324395, 20648790]

約数ペア:

[(1, 20648790), (2, 10324395), (3, 6882930), (5, 4129758), (6, 3441465), (9, 2294310), (10, 2064879), (15, 1376586), (18, 1147155), (27, 764770), (30, 688293), (31, 666090), (45, 458862), (54, 382385), (62, 333045), (90, 229431), (93, 222030), (135, 152954), (155, 133218), (186, 111015), (270, 76477), (279, 74010), (310, 66609), (465, 44406), (558, 37005), (837, 24670), (930, 22203), (1395, 14802), (1674, 12335), (2467, 8370), (2790, 7401), (4185, 4934)]