283907500

素因数分解:

$2^2\times 5^4\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{139}}^1$

素因数の和:225

約数の個数: 120

約数和(自身を含む): 673534400

約数和(自身を除く): 389626900

約数列:

[1, 2, 4, 5, 10, 19, 20, 25, 38, 43, 50, 76, 86, 95, 100, 125, 139, 172, 190, 215, 250, 278, 380, 430, 475, 500, 556, 625, 695, 817, 860, 950, 1075, 1250, 1390, 1634, 1900, 2150, 2375, 2500, 2641, 2780, 3268, 3475, 4085, 4300, 4750, 5282, 5375, 5977, 6950, 8170, 9500, 10564, 10750, 11875, 11954, 13205, 13900, 16340, 17375, 20425, 21500, 23750, 23908, 26410, 26875, 29885, 34750, 40850, 47500, 52820, 53750, 59770, 66025, 69500, 81700, 86875, 102125, 107500, 113563, 119540, 132050, 149425, 173750, 204250, 227126, 264100, 298850, 330125, 347500, 408500, 454252, 510625, 567815, 597700, 660250, 747125, 1021250, 1135630, 1320500, 1494250, 1650625, 2042500, 2271260, 2839075, 2988500, 3301250, 3735625, 5678150, 6602500, 7471250, 11356300, 14195375, 14942500, 28390750, 56781500, 70976875, 141953750, 283907500]

約数ペア:

[(1, 283907500), (2, 141953750), (4, 70976875), (5, 56781500), (10, 28390750), (19, 14942500), (20, 14195375), (25, 11356300), (38, 7471250), (43, 6602500), (50, 5678150), (76, 3735625), (86, 3301250), (95, 2988500), (100, 2839075), (125, 2271260), (139, 2042500), (172, 1650625), (190, 1494250), (215, 1320500), (250, 1135630), (278, 1021250), (380, 747125), (430, 660250), (475, 597700), (500, 567815), (556, 510625), (625, 454252), (695, 408500), (817, 347500), (860, 330125), (950, 298850), (1075, 264100), (1250, 227126), (1390, 204250), (1634, 173750), (1900, 149425), (2150, 132050), (2375, 119540), (2500, 113563), (2641, 107500), (2780, 102125), (3268, 86875), (3475, 81700), (4085, 69500), (4300, 66025), (4750, 59770), (5282, 53750), (5375, 52820), (5977, 47500), (6950, 40850), (8170, 34750), (9500, 29885), (10564, 26875), (10750, 26410), (11875, 23908), (11954, 23750), (13205, 21500), (13900, 20425), (16340, 17375)]