81836325

素因数分解:

$3^5\times 5^2\times {\mathrm{19}}^1\times {\mathrm{709}}^1$

素因数の和:753

約数の個数: 72

約数和(自身を含む): 160232800

約数和(自身を除く): 78396475

約数列:

[1, 3, 5, 9, 15, 19, 25, 27, 45, 57, 75, 81, 95, 135, 171, 225, 243, 285, 405, 475, 513, 675, 709, 855, 1215, 1425, 1539, 2025, 2127, 2565, 3545, 4275, 4617, 6075, 6381, 7695, 10635, 12825, 13471, 17725, 19143, 23085, 31905, 38475, 40413, 53175, 57429, 67355, 95715, 115425, 121239, 159525, 172287, 202065, 287145, 336775, 363717, 478575, 606195, 861435, 1010325, 1091151, 1435725, 1818585, 3030975, 3273453, 4307175, 5455755, 9092925, 16367265, 27278775, 81836325]

約数ペア:

[(1, 81836325), (3, 27278775), (5, 16367265), (9, 9092925), (15, 5455755), (19, 4307175), (25, 3273453), (27, 3030975), (45, 1818585), (57, 1435725), (75, 1091151), (81, 1010325), (95, 861435), (135, 606195), (171, 478575), (225, 363717), (243, 336775), (285, 287145), (405, 202065), (475, 172287), (513, 159525), (675, 121239), (709, 115425), (855, 95715), (1215, 67355), (1425, 57429), (1539, 53175), (2025, 40413), (2127, 38475), (2565, 31905), (3545, 23085), (4275, 19143), (4617, 17725), (6075, 13471), (6381, 12825), (7695, 10635)]