1280950

素因数分解:

$2^1\times 5^2\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{137}}^1$

素因数の和:177

約数の個数: 48

約数和(自身を含む): 2772144

約数和(自身を除く): 1491194

約数列:

[1, 2, 5, 10, 11, 17, 22, 25, 34, 50, 55, 85, 110, 137, 170, 187, 274, 275, 374, 425, 550, 685, 850, 935, 1370, 1507, 1870, 2329, 3014, 3425, 4658, 4675, 6850, 7535, 9350, 11645, 15070, 23290, 25619, 37675, 51238, 58225, 75350, 116450, 128095, 256190, 640475, 1280950]

約数ペア:

[(1, 1280950), (2, 640475), (5, 256190), (10, 128095), (11, 116450), (17, 75350), (22, 58225), (25, 51238), (34, 37675), (50, 25619), (55, 23290), (85, 15070), (110, 11645), (137, 9350), (170, 7535), (187, 6850), (274, 4675), (275, 4658), (374, 3425), (425, 3014), (550, 2329), (685, 1870), (850, 1507), (935, 1370)]