17918240

素因数分解:

$2^5\times 5^1\times {\mathrm{53}}^1\times {\mathrm{2113}}^1$

素因数の和:2181

約数の個数: 48

約数和(自身を含む): 43150968

約数和(自身を除く): 25232728

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 53, 80, 106, 160, 212, 265, 424, 530, 848, 1060, 1696, 2113, 2120, 4226, 4240, 8452, 8480, 10565, 16904, 21130, 33808, 42260, 67616, 84520, 111989, 169040, 223978, 338080, 447956, 559945, 895912, 1119890, 1791824, 2239780, 3583648, 4479560, 8959120, 17918240]

約数ペア:

[(1, 17918240), (2, 8959120), (4, 4479560), (5, 3583648), (8, 2239780), (10, 1791824), (16, 1119890), (20, 895912), (32, 559945), (40, 447956), (53, 338080), (80, 223978), (106, 169040), (160, 111989), (212, 84520), (265, 67616), (424, 42260), (530, 33808), (848, 21130), (1060, 16904), (1696, 10565), (2113, 8480), (2120, 8452), (4226, 4240)]