81690525

素因数分解:

$3^5\times 5^2\times 7^1\times {\mathrm{17}}^1\times {\mathrm{113}}^1$

素因数の和:162

約数の個数: 144

約数和(自身を含む): 185238144

約数和(自身を除く): 103547619

約数列:

[1, 3, 5, 7, 9, 15, 17, 21, 25, 27, 35, 45, 51, 63, 75, 81, 85, 105, 113, 119, 135, 153, 175, 189, 225, 243, 255, 315, 339, 357, 405, 425, 459, 525, 565, 567, 595, 675, 765, 791, 945, 1017, 1071, 1215, 1275, 1377, 1575, 1695, 1701, 1785, 1921, 2025, 2295, 2373, 2825, 2835, 2975, 3051, 3213, 3825, 3955, 4131, 4725, 5085, 5355, 5763, 6075, 6885, 7119, 8475, 8505, 8925, 9153, 9605, 9639, 11475, 11865, 13447, 14175, 15255, 16065, 17289, 19775, 20655, 21357, 25425, 26775, 27459, 28815, 28917, 34425, 35595, 40341, 42525, 45765, 48025, 48195, 51867, 59325, 64071, 67235, 76275, 80325, 86445, 103275, 106785, 121023, 137295, 144075, 144585, 155601, 177975, 192213, 201705, 228825, 240975, 259335, 320355, 336175, 363069, 432225, 466803, 533925, 605115, 686475, 722925, 778005, 961065, 1008525, 1089207, 1296675, 1601775, 1815345, 2334015, 3025575, 3267621, 3890025, 4805325, 5446035, 9076725, 11670075, 16338105, 27230175, 81690525]

約数ペア:

[(1, 81690525), (3, 27230175), (5, 16338105), (7, 11670075), (9, 9076725), (15, 5446035), (17, 4805325), (21, 3890025), (25, 3267621), (27, 3025575), (35, 2334015), (45, 1815345), (51, 1601775), (63, 1296675), (75, 1089207), (81, 1008525), (85, 961065), (105, 778005), (113, 722925), (119, 686475), (135, 605115), (153, 533925), (175, 466803), (189, 432225), (225, 363069), (243, 336175), (255, 320355), (315, 259335), (339, 240975), (357, 228825), (405, 201705), (425, 192213), (459, 177975), (525, 155601), (565, 144585), (567, 144075), (595, 137295), (675, 121023), (765, 106785), (791, 103275), (945, 86445), (1017, 80325), (1071, 76275), (1215, 67235), (1275, 64071), (1377, 59325), (1575, 51867), (1695, 48195), (1701, 48025), (1785, 45765), (1921, 42525), (2025, 40341), (2295, 35595), (2373, 34425), (2825, 28917), (2835, 28815), (2975, 27459), (3051, 26775), (3213, 25425), (3825, 21357), (3955, 20655), (4131, 19775), (4725, 17289), (5085, 16065), (5355, 15255), (5763, 14175), (6075, 13447), (6885, 11865), (7119, 11475), (8475, 9639), (8505, 9605), (8925, 9153)]