257722850

素因数分解:

$2^1\times 5^2\times 7^2\times {\mathrm{11}}^1\times {\mathrm{73}}^1\times {\mathrm{131}}^1$

素因数の和:241

約数の個数: 144

約数和(自身を含む): 621362016

約数和(自身を除く): 363639166

約数列:

[1, 2, 5, 7, 10, 11, 14, 22, 25, 35, 49, 50, 55, 70, 73, 77, 98, 110, 131, 146, 154, 175, 245, 262, 275, 350, 365, 385, 490, 511, 539, 550, 655, 730, 770, 803, 917, 1022, 1078, 1225, 1310, 1441, 1606, 1825, 1834, 1925, 2450, 2555, 2695, 2882, 3275, 3577, 3650, 3850, 4015, 4585, 5110, 5390, 5621, 6419, 6550, 7154, 7205, 8030, 9170, 9563, 10087, 11242, 12775, 12838, 13475, 14410, 17885, 19126, 20075, 20174, 22925, 25550, 26950, 28105, 32095, 35770, 36025, 39347, 40150, 45850, 47815, 50435, 56210, 64190, 66941, 70609, 72050, 78694, 89425, 95630, 100870, 105193, 133882, 140525, 141218, 160475, 178850, 196735, 210386, 239075, 252175, 281050, 320950, 334705, 353045, 393470, 468587, 478150, 504350, 525965, 669410, 706090, 736351, 937174, 983675, 1051930, 1472702, 1673525, 1765225, 1967350, 2342935, 2629825, 3347050, 3530450, 3681755, 4685870, 5154457, 5259650, 7363510, 10308914, 11714675, 18408775, 23429350, 25772285, 36817550, 51544570, 128861425, 257722850]

約数ペア:

[(1, 257722850), (2, 128861425), (5, 51544570), (7, 36817550), (10, 25772285), (11, 23429350), (14, 18408775), (22, 11714675), (25, 10308914), (35, 7363510), (49, 5259650), (50, 5154457), (55, 4685870), (70, 3681755), (73, 3530450), (77, 3347050), (98, 2629825), (110, 2342935), (131, 1967350), (146, 1765225), (154, 1673525), (175, 1472702), (245, 1051930), (262, 983675), (275, 937174), (350, 736351), (365, 706090), (385, 669410), (490, 525965), (511, 504350), (539, 478150), (550, 468587), (655, 393470), (730, 353045), (770, 334705), (803, 320950), (917, 281050), (1022, 252175), (1078, 239075), (1225, 210386), (1310, 196735), (1441, 178850), (1606, 160475), (1825, 141218), (1834, 140525), (1925, 133882), (2450, 105193), (2555, 100870), (2695, 95630), (2882, 89425), (3275, 78694), (3577, 72050), (3650, 70609), (3850, 66941), (4015, 64190), (4585, 56210), (5110, 50435), (5390, 47815), (5621, 45850), (6419, 40150), (6550, 39347), (7154, 36025), (7205, 35770), (8030, 32095), (9170, 28105), (9563, 26950), (10087, 25550), (11242, 22925), (12775, 20174), (12838, 20075), (13475, 19126), (14410, 17885)]