21427920

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{29761}}^1$

素因数の和:29780

約数の個数: 60

約数和(自身を含む): 71964516

約数和(自身を除く): 50536596

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 36, 40, 45, 48, 60, 72, 80, 90, 120, 144, 180, 240, 360, 720, 29761, 59522, 89283, 119044, 148805, 178566, 238088, 267849, 297610, 357132, 446415, 476176, 535698, 595220, 714264, 892830, 1071396, 1190440, 1339245, 1428528, 1785660, 2142792, 2380880, 2678490, 3571320, 4285584, 5356980, 7142640, 10713960, 21427920]

約数ペア:

[(1, 21427920), (2, 10713960), (3, 7142640), (4, 5356980), (5, 4285584), (6, 3571320), (8, 2678490), (9, 2380880), (10, 2142792), (12, 1785660), (15, 1428528), (16, 1339245), (18, 1190440), (20, 1071396), (24, 892830), (30, 714264), (36, 595220), (40, 535698), (45, 476176), (48, 446415), (60, 357132), (72, 297610), (80, 267849), (90, 238088), (120, 178566), (144, 148805), (180, 119044), (240, 89283), (360, 59522), (720, 29761)]