420178825

素因数分解:

$5^2\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{47}}^1\times {\mathrm{59}}^1$

素因数の和:175

約数の個数: 96

約数和(自身を含む): 642816000

約数和(自身を除く): 222637175

約数列:

[1, 5, 11, 19, 25, 29, 47, 55, 59, 95, 145, 209, 235, 275, 295, 319, 475, 517, 551, 649, 725, 893, 1045, 1121, 1175, 1363, 1475, 1595, 1711, 2585, 2755, 2773, 3245, 4465, 5225, 5605, 6061, 6815, 7975, 8555, 9823, 12331, 12925, 13775, 13865, 14993, 16225, 18821, 22325, 25897, 28025, 30305, 30503, 32509, 34075, 42775, 49115, 52687, 61655, 69325, 74965, 80417, 94105, 129485, 151525, 152515, 162545, 245575, 263435, 284867, 308275, 357599, 374825, 402085, 470525, 579557, 647425, 762575, 812725, 884587, 1317175, 1424335, 1527923, 1787995, 2010425, 2897785, 4422935, 7121675, 7639615, 8939975, 14488925, 16807153, 22114675, 38198075, 84035765, 420178825]

約数ペア:

[(1, 420178825), (5, 84035765), (11, 38198075), (19, 22114675), (25, 16807153), (29, 14488925), (47, 8939975), (55, 7639615), (59, 7121675), (95, 4422935), (145, 2897785), (209, 2010425), (235, 1787995), (275, 1527923), (295, 1424335), (319, 1317175), (475, 884587), (517, 812725), (551, 762575), (649, 647425), (725, 579557), (893, 470525), (1045, 402085), (1121, 374825), (1175, 357599), (1363, 308275), (1475, 284867), (1595, 263435), (1711, 245575), (2585, 162545), (2755, 152515), (2773, 151525), (3245, 129485), (4465, 94105), (5225, 80417), (5605, 74965), (6061, 69325), (6815, 61655), (7975, 52687), (8555, 49115), (9823, 42775), (12331, 34075), (12925, 32509), (13775, 30503), (13865, 30305), (14993, 28025), (16225, 25897), (18821, 22325)]