31141665

素因数分解:

$3^5\times 5^1\times {\mathrm{19}}^2\times {\mathrm{71}}^1$

素因数の和:129

約数の個数: 72

約数和(自身を含む): 59911488

約数和(自身を除く): 28769823

約数列:

[1, 3, 5, 9, 15, 19, 27, 45, 57, 71, 81, 95, 135, 171, 213, 243, 285, 355, 361, 405, 513, 639, 855, 1065, 1083, 1215, 1349, 1539, 1805, 1917, 2565, 3195, 3249, 4047, 4617, 5415, 5751, 6745, 7695, 9585, 9747, 12141, 16245, 17253, 20235, 23085, 25631, 28755, 29241, 36423, 48735, 60705, 76893, 86265, 87723, 109269, 128155, 146205, 182115, 230679, 327807, 384465, 438615, 546345, 692037, 1153395, 1639035, 2076111, 3460185, 6228333, 10380555, 31141665]

約数ペア:

[(1, 31141665), (3, 10380555), (5, 6228333), (9, 3460185), (15, 2076111), (19, 1639035), (27, 1153395), (45, 692037), (57, 546345), (71, 438615), (81, 384465), (95, 327807), (135, 230679), (171, 182115), (213, 146205), (243, 128155), (285, 109269), (355, 87723), (361, 86265), (405, 76893), (513, 60705), (639, 48735), (855, 36423), (1065, 29241), (1083, 28755), (1215, 25631), (1349, 23085), (1539, 20235), (1805, 17253), (1917, 16245), (2565, 12141), (3195, 9747), (3249, 9585), (4047, 7695), (4617, 6745), (5415, 5751)]