71871525

素因数分解:

$3^2\times 5^2\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{409}}^1$

素因数の和:507

約数の個数: 72

約数和(自身を含む): 142758720

約数和(自身を除く): 70887195

約数列:

[1, 3, 5, 9, 11, 15, 25, 33, 45, 55, 71, 75, 99, 165, 213, 225, 275, 355, 409, 495, 639, 781, 825, 1065, 1227, 1775, 2045, 2343, 2475, 3195, 3681, 3905, 4499, 5325, 6135, 7029, 10225, 11715, 13497, 15975, 18405, 19525, 22495, 29039, 30675, 35145, 40491, 58575, 67485, 87117, 92025, 112475, 145195, 175725, 202455, 261351, 319429, 337425, 435585, 725975, 958287, 1012275, 1306755, 1597145, 2177925, 2874861, 4791435, 6533775, 7985725, 14374305, 23957175, 71871525]

約数ペア:

[(1, 71871525), (3, 23957175), (5, 14374305), (9, 7985725), (11, 6533775), (15, 4791435), (25, 2874861), (33, 2177925), (45, 1597145), (55, 1306755), (71, 1012275), (75, 958287), (99, 725975), (165, 435585), (213, 337425), (225, 319429), (275, 261351), (355, 202455), (409, 175725), (495, 145195), (639, 112475), (781, 92025), (825, 87117), (1065, 67485), (1227, 58575), (1775, 40491), (2045, 35145), (2343, 30675), (2475, 29039), (3195, 22495), (3681, 19525), (3905, 18405), (4499, 15975), (5325, 13497), (6135, 11715), (7029, 10225)]