19853840

素因数分解:

$2^4\times 5^1\times {\mathrm{41}}^1\times {\mathrm{6053}}^1$

素因数の和:6107

約数の個数: 40

約数和(自身を含む): 47293848

約数和(自身を除く): 27440008

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 41, 80, 82, 164, 205, 328, 410, 656, 820, 1640, 3280, 6053, 12106, 24212, 30265, 48424, 60530, 96848, 121060, 242120, 248173, 484240, 496346, 992692, 1240865, 1985384, 2481730, 3970768, 4963460, 9926920, 19853840]

約数ペア:

[(1, 19853840), (2, 9926920), (4, 4963460), (5, 3970768), (8, 2481730), (10, 1985384), (16, 1240865), (20, 992692), (40, 496346), (41, 484240), (80, 248173), (82, 242120), (164, 121060), (205, 96848), (328, 60530), (410, 48424), (656, 30265), (820, 24212), (1640, 12106), (3280, 6053)]