397777980

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{281}}^1\times {\mathrm{23593}}^1$

素因数の和:23886

約数の個数: 48

約数和(自身を含む): 1117789344

約数和(自身を除く): 720011364

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 281, 562, 843, 1124, 1405, 1686, 2810, 3372, 4215, 5620, 8430, 16860, 23593, 47186, 70779, 94372, 117965, 141558, 235930, 283116, 353895, 471860, 707790, 1415580, 6629633, 13259266, 19888899, 26518532, 33148165, 39777798, 66296330, 79555596, 99444495, 132592660, 198888990, 397777980]

約数ペア:

[(1, 397777980), (2, 198888990), (3, 132592660), (4, 99444495), (5, 79555596), (6, 66296330), (10, 39777798), (12, 33148165), (15, 26518532), (20, 19888899), (30, 13259266), (60, 6629633), (281, 1415580), (562, 707790), (843, 471860), (1124, 353895), (1405, 283116), (1686, 235930), (2810, 141558), (3372, 117965), (4215, 94372), (5620, 70779), (8430, 47186), (16860, 23593)]