20822080

素因数分解:

$2^6\times 5^1\times {\mathrm{31}}^1\times {\mathrm{2099}}^1$

素因数の和:2147

約数の個数: 56

約数和(自身を含む): 51206400

約数和(自身を除く): 30384320

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 32, 40, 62, 64, 80, 124, 155, 160, 248, 310, 320, 496, 620, 992, 1240, 1984, 2099, 2480, 4198, 4960, 8396, 9920, 10495, 16792, 20990, 33584, 41980, 65069, 67168, 83960, 130138, 134336, 167920, 260276, 325345, 335840, 520552, 650690, 671680, 1041104, 1301380, 2082208, 2602760, 4164416, 5205520, 10411040, 20822080]

約数ペア:

[(1, 20822080), (2, 10411040), (4, 5205520), (5, 4164416), (8, 2602760), (10, 2082208), (16, 1301380), (20, 1041104), (31, 671680), (32, 650690), (40, 520552), (62, 335840), (64, 325345), (80, 260276), (124, 167920), (155, 134336), (160, 130138), (248, 83960), (310, 67168), (320, 65069), (496, 41980), (620, 33584), (992, 20990), (1240, 16792), (1984, 10495), (2099, 9920), (2480, 8396), (4198, 4960)]