28753840

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{18917}}^1$

素因数の和:18949

約数の個数: 40

約数和(自身を含む): 70374960

約数和(自身を除く): 41621120

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 38, 40, 76, 80, 95, 152, 190, 304, 380, 760, 1520, 18917, 37834, 75668, 94585, 151336, 189170, 302672, 359423, 378340, 718846, 756680, 1437692, 1513360, 1797115, 2875384, 3594230, 5750768, 7188460, 14376920, 28753840]

約数ペア:

[(1, 28753840), (2, 14376920), (4, 7188460), (5, 5750768), (8, 3594230), (10, 2875384), (16, 1797115), (19, 1513360), (20, 1437692), (38, 756680), (40, 718846), (76, 378340), (80, 359423), (95, 302672), (152, 189170), (190, 151336), (304, 94585), (380, 75668), (760, 37834), (1520, 18917)]