20516490

素因数分解:

$2^1\times 3^5\times 5^1\times {\mathrm{8443}}^1$

素因数の和:8465

約数の個数: 48

約数和(自身を含む): 55325088

約数和(自身を除く): 34808598

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 27, 30, 45, 54, 81, 90, 135, 162, 243, 270, 405, 486, 810, 1215, 2430, 8443, 16886, 25329, 42215, 50658, 75987, 84430, 126645, 151974, 227961, 253290, 379935, 455922, 683883, 759870, 1139805, 1367766, 2051649, 2279610, 3419415, 4103298, 6838830, 10258245, 20516490]

約数ペア:

[(1, 20516490), (2, 10258245), (3, 6838830), (5, 4103298), (6, 3419415), (9, 2279610), (10, 2051649), (15, 1367766), (18, 1139805), (27, 759870), (30, 683883), (45, 455922), (54, 379935), (81, 253290), (90, 227961), (135, 151974), (162, 126645), (243, 84430), (270, 75987), (405, 50658), (486, 42215), (810, 25329), (1215, 16886), (2430, 8443)]