201531825

素因数分解:

$3^2\times 5^2\times {\mathrm{11}}^1\times {\mathrm{107}}^1\times {\mathrm{761}}^1$

素因数の和:895

約数の個数: 72

約数和(自身を含む): 397983456

約数和(自身を除く): 196451631

約数列:

[1, 3, 5, 9, 11, 15, 25, 33, 45, 55, 75, 99, 107, 165, 225, 275, 321, 495, 535, 761, 825, 963, 1177, 1605, 2283, 2475, 2675, 3531, 3805, 4815, 5885, 6849, 8025, 8371, 10593, 11415, 17655, 19025, 24075, 25113, 29425, 34245, 41855, 52965, 57075, 75339, 81427, 88275, 125565, 171225, 209275, 244281, 264825, 376695, 407135, 627825, 732843, 895697, 1221405, 1883475, 2035675, 2687091, 3664215, 4478485, 6107025, 8061273, 13435455, 18321075, 22392425, 40306365, 67177275, 201531825]

約数ペア:

[(1, 201531825), (3, 67177275), (5, 40306365), (9, 22392425), (11, 18321075), (15, 13435455), (25, 8061273), (33, 6107025), (45, 4478485), (55, 3664215), (75, 2687091), (99, 2035675), (107, 1883475), (165, 1221405), (225, 895697), (275, 732843), (321, 627825), (495, 407135), (535, 376695), (761, 264825), (825, 244281), (963, 209275), (1177, 171225), (1605, 125565), (2283, 88275), (2475, 81427), (2675, 75339), (3531, 57075), (3805, 52965), (4815, 41855), (5885, 34245), (6849, 29425), (8025, 25113), (8371, 24075), (10593, 19025), (11415, 17655)]