254800

素因数分解:

$2^4\times 5^2\times 7^2\times {\mathrm{13}}^1$

素因数の和:45

約数の個数: 90

約数和(自身を含む): 766878

約数和(自身を除く): 512078

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 16, 20, 25, 26, 28, 35, 40, 49, 50, 52, 56, 65, 70, 80, 91, 98, 100, 104, 112, 130, 140, 175, 182, 196, 200, 208, 245, 260, 280, 325, 350, 364, 392, 400, 455, 490, 520, 560, 637, 650, 700, 728, 784, 910, 980, 1040, 1225, 1274, 1300, 1400, 1456, 1820, 1960, 2275, 2450, 2548, 2600, 2800, 3185, 3640, 3920, 4550, 4900, 5096, 5200, 6370, 7280, 9100, 9800, 10192, 12740, 15925, 18200, 19600, 25480, 31850, 36400, 50960, 63700, 127400, 254800]

約数ペア:

[(1, 254800), (2, 127400), (4, 63700), (5, 50960), (7, 36400), (8, 31850), (10, 25480), (13, 19600), (14, 18200), (16, 15925), (20, 12740), (25, 10192), (26, 9800), (28, 9100), (35, 7280), (40, 6370), (49, 5200), (50, 5096), (52, 4900), (56, 4550), (65, 3920), (70, 3640), (80, 3185), (91, 2800), (98, 2600), (100, 2548), (104, 2450), (112, 2275), (130, 1960), (140, 1820), (175, 1456), (182, 1400), (196, 1300), (200, 1274), (208, 1225), (245, 1040), (260, 980), (280, 910), (325, 784), (350, 728), (364, 700), (392, 650), (400, 637), (455, 560), (490, 520)]