20369940

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{211}}^1\times {\mathrm{1609}}^1$

素因数の和:1832

約数の個数: 48

約数和(自身を含む): 57341760

約数和(自身を除く): 36971820

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 211, 422, 633, 844, 1055, 1266, 1609, 2110, 2532, 3165, 3218, 4220, 4827, 6330, 6436, 8045, 9654, 12660, 16090, 19308, 24135, 32180, 48270, 96540, 339499, 678998, 1018497, 1357996, 1697495, 2036994, 3394990, 4073988, 5092485, 6789980, 10184970, 20369940]

約数ペア:

[(1, 20369940), (2, 10184970), (3, 6789980), (4, 5092485), (5, 4073988), (6, 3394990), (10, 2036994), (12, 1697495), (15, 1357996), (20, 1018497), (30, 678998), (60, 339499), (211, 96540), (422, 48270), (633, 32180), (844, 24135), (1055, 19308), (1266, 16090), (1609, 12660), (2110, 9654), (2532, 8045), (3165, 6436), (3218, 6330), (4220, 4827)]