287888912

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{47}}^1\times {\mathrm{20149}}^1$

素因数の和:20223

約数の個数: 40

約数和(自身を含む): 599664000

約数和(自身を除く): 311775088

約数列:

[1, 2, 4, 8, 16, 19, 38, 47, 76, 94, 152, 188, 304, 376, 752, 893, 1786, 3572, 7144, 14288, 20149, 40298, 80596, 161192, 322384, 382831, 765662, 947003, 1531324, 1894006, 3062648, 3788012, 6125296, 7576024, 15152048, 17993057, 35986114, 71972228, 143944456, 287888912]

約数ペア:

[(1, 287888912), (2, 143944456), (4, 71972228), (8, 35986114), (16, 17993057), (19, 15152048), (38, 7576024), (47, 6125296), (76, 3788012), (94, 3062648), (152, 1894006), (188, 1531324), (304, 947003), (376, 765662), (752, 382831), (893, 322384), (1786, 161192), (3572, 80596), (7144, 40298), (14288, 20149)]