890451920

素因数分解:

$2^4\times 5^1\times {\mathrm{1831}}^1\times {\mathrm{6079}}^1$

素因数の和:7923

約数の個数: 40

約数和(自身を含む): 2071772160

約数和(自身を除く): 1181320240

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 1831, 3662, 6079, 7324, 9155, 12158, 14648, 18310, 24316, 29296, 30395, 36620, 48632, 60790, 73240, 97264, 121580, 146480, 243160, 486320, 11130649, 22261298, 44522596, 55653245, 89045192, 111306490, 178090384, 222612980, 445225960, 890451920]

約数ペア:

[(1, 890451920), (2, 445225960), (4, 222612980), (5, 178090384), (8, 111306490), (10, 89045192), (16, 55653245), (20, 44522596), (40, 22261298), (80, 11130649), (1831, 486320), (3662, 243160), (6079, 146480), (7324, 121580), (9155, 97264), (12158, 73240), (14648, 60790), (18310, 48632), (24316, 36620), (29296, 30395)]