221566125

素因数分解:

$3^1\times 5^3\times {\mathrm{11}}^2\times {\mathrm{19}}^1\times {\mathrm{257}}^1$

素因数の和:316

約数の個数: 96

約数和(自身を含む): 428238720

約数和(自身を除く): 206672595

約数列:

[1, 3, 5, 11, 15, 19, 25, 33, 55, 57, 75, 95, 121, 125, 165, 209, 257, 275, 285, 363, 375, 475, 605, 627, 771, 825, 1045, 1285, 1375, 1425, 1815, 2299, 2375, 2827, 3025, 3135, 3855, 4125, 4883, 5225, 6425, 6897, 7125, 8481, 9075, 11495, 14135, 14649, 15125, 15675, 19275, 24415, 26125, 31097, 32125, 34485, 42405, 45375, 53713, 57475, 70675, 73245, 78375, 93291, 96375, 122075, 155485, 161139, 172425, 212025, 268565, 287375, 353375, 366225, 466455, 590843, 610375, 777425, 805695, 862125, 1060125, 1342825, 1772529, 1831125, 2332275, 2954215, 3887125, 4028475, 6714125, 8862645, 11661375, 14771075, 20142375, 44313225, 73855375, 221566125]

約数ペア:

[(1, 221566125), (3, 73855375), (5, 44313225), (11, 20142375), (15, 14771075), (19, 11661375), (25, 8862645), (33, 6714125), (55, 4028475), (57, 3887125), (75, 2954215), (95, 2332275), (121, 1831125), (125, 1772529), (165, 1342825), (209, 1060125), (257, 862125), (275, 805695), (285, 777425), (363, 610375), (375, 590843), (475, 466455), (605, 366225), (627, 353375), (771, 287375), (825, 268565), (1045, 212025), (1285, 172425), (1375, 161139), (1425, 155485), (1815, 122075), (2299, 96375), (2375, 93291), (2827, 78375), (3025, 73245), (3135, 70675), (3855, 57475), (4125, 53713), (4883, 45375), (5225, 42405), (6425, 34485), (6897, 32125), (7125, 31097), (8481, 26125), (9075, 24415), (11495, 19275), (14135, 15675), (14649, 15125)]