15666920

素因数分解:

$2^3\times 5^1\times {\mathrm{41}}^2\times {\mathrm{233}}^1$

素因数の和:326

約数の個数: 48

約数和(自身を含む): 36286380

約数和(自身を除く): 20619460

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 41, 82, 164, 205, 233, 328, 410, 466, 820, 932, 1165, 1640, 1681, 1864, 2330, 3362, 4660, 6724, 8405, 9320, 9553, 13448, 16810, 19106, 33620, 38212, 47765, 67240, 76424, 95530, 191060, 382120, 391673, 783346, 1566692, 1958365, 3133384, 3916730, 7833460, 15666920]

約数ペア:

[(1, 15666920), (2, 7833460), (4, 3916730), (5, 3133384), (8, 1958365), (10, 1566692), (20, 783346), (40, 391673), (41, 382120), (82, 191060), (164, 95530), (205, 76424), (233, 67240), (328, 47765), (410, 38212), (466, 33620), (820, 19106), (932, 16810), (1165, 13448), (1640, 9553), (1681, 9320), (1864, 8405), (2330, 6724), (3362, 4660)]