2561900

素因数分解:

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

素因数の和:179

約数の個数: 72

約数和(自身を含む): 6468336

約数和(自身を除く): 3906436

約数列:

[1, 2, 4, 5, 10, 11, 17, 20, 22, 25, 34, 44, 50, 55, 68, 85, 100, 110, 137, 170, 187, 220, 274, 275, 340, 374, 425, 548, 550, 685, 748, 850, 935, 1100, 1370, 1507, 1700, 1870, 2329, 2740, 3014, 3425, 3740, 4658, 4675, 6028, 6850, 7535, 9316, 9350, 11645, 13700, 15070, 18700, 23290, 25619, 30140, 37675, 46580, 51238, 58225, 75350, 102476, 116450, 128095, 150700, 232900, 256190, 512380, 640475, 1280950, 2561900]

約数ペア:

[(1, 2561900), (2, 1280950), (4, 640475), (5, 512380), (10, 256190), (11, 232900), (17, 150700), (20, 128095), (22, 116450), (25, 102476), (34, 75350), (44, 58225), (50, 51238), (55, 46580), (68, 37675), (85, 30140), (100, 25619), (110, 23290), (137, 18700), (170, 15070), (187, 13700), (220, 11645), (274, 9350), (275, 9316), (340, 7535), (374, 6850), (425, 6028), (548, 4675), (550, 4658), (685, 3740), (748, 3425), (850, 3014), (935, 2740), (1100, 2329), (1370, 1870), (1507, 1700)]