12991275

素因数分解:

$3^2\times 5^2\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{181}}^1$

素因数の和:237

約数の個数: 72

約数和(自身を含む): 26404560

約数和(自身を除く): 13413285

約数列:

[1, 3, 5, 9, 11, 15, 25, 29, 33, 45, 55, 75, 87, 99, 145, 165, 181, 225, 261, 275, 319, 435, 495, 543, 725, 825, 905, 957, 1305, 1595, 1629, 1991, 2175, 2475, 2715, 2871, 4525, 4785, 5249, 5973, 6525, 7975, 8145, 9955, 13575, 14355, 15747, 17919, 23925, 26245, 29865, 40725, 47241, 49775, 57739, 71775, 78735, 89595, 131225, 149325, 173217, 236205, 288695, 393675, 447975, 519651, 866085, 1181025, 1443475, 2598255, 4330425, 12991275]

約数ペア:

[(1, 12991275), (3, 4330425), (5, 2598255), (9, 1443475), (11, 1181025), (15, 866085), (25, 519651), (29, 447975), (33, 393675), (45, 288695), (55, 236205), (75, 173217), (87, 149325), (99, 131225), (145, 89595), (165, 78735), (181, 71775), (225, 57739), (261, 49775), (275, 47241), (319, 40725), (435, 29865), (495, 26245), (543, 23925), (725, 17919), (825, 15747), (905, 14355), (957, 13575), (1305, 9955), (1595, 8145), (1629, 7975), (1991, 6525), (2175, 5973), (2475, 5249), (2715, 4785), (2871, 4525)]