20503920

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{37}}^1\times {\mathrm{2309}}^1$

素因数の和:2362

約数の個数: 80

約数和(自身を含む): 65308320

約数和(自身を除く): 44804400

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 37, 40, 48, 60, 74, 80, 111, 120, 148, 185, 222, 240, 296, 370, 444, 555, 592, 740, 888, 1110, 1480, 1776, 2220, 2309, 2960, 4440, 4618, 6927, 8880, 9236, 11545, 13854, 18472, 23090, 27708, 34635, 36944, 46180, 55416, 69270, 85433, 92360, 110832, 138540, 170866, 184720, 256299, 277080, 341732, 427165, 512598, 554160, 683464, 854330, 1025196, 1281495, 1366928, 1708660, 2050392, 2562990, 3417320, 4100784, 5125980, 6834640, 10251960, 20503920]

約数ペア:

[(1, 20503920), (2, 10251960), (3, 6834640), (4, 5125980), (5, 4100784), (6, 3417320), (8, 2562990), (10, 2050392), (12, 1708660), (15, 1366928), (16, 1281495), (20, 1025196), (24, 854330), (30, 683464), (37, 554160), (40, 512598), (48, 427165), (60, 341732), (74, 277080), (80, 256299), (111, 184720), (120, 170866), (148, 138540), (185, 110832), (222, 92360), (240, 85433), (296, 69270), (370, 55416), (444, 46180), (555, 36944), (592, 34635), (740, 27708), (888, 23090), (1110, 18472), (1480, 13854), (1776, 11545), (2220, 9236), (2309, 8880), (2960, 6927), (4440, 4618)]