31263075

素因数分解:

$3^2\times 5^2\times {\mathrm{19}}^1\times {\mathrm{71}}^1\times {\mathrm{103}}^1$

素因数の和:209

約数の個数: 72

約数和(自身を含む): 60353280

約数和(自身を除く): 29090205

約数列:

[1, 3, 5, 9, 15, 19, 25, 45, 57, 71, 75, 95, 103, 171, 213, 225, 285, 309, 355, 475, 515, 639, 855, 927, 1065, 1349, 1425, 1545, 1775, 1957, 2575, 3195, 4047, 4275, 4635, 5325, 5871, 6745, 7313, 7725, 9785, 12141, 15975, 17613, 20235, 21939, 23175, 29355, 33725, 36565, 48925, 60705, 65817, 88065, 101175, 109695, 138947, 146775, 182825, 303525, 329085, 416841, 440325, 548475, 694735, 1250523, 1645425, 2084205, 3473675, 6252615, 10421025, 31263075]

約数ペア:

[(1, 31263075), (3, 10421025), (5, 6252615), (9, 3473675), (15, 2084205), (19, 1645425), (25, 1250523), (45, 694735), (57, 548475), (71, 440325), (75, 416841), (95, 329085), (103, 303525), (171, 182825), (213, 146775), (225, 138947), (285, 109695), (309, 101175), (355, 88065), (475, 65817), (515, 60705), (639, 48925), (855, 36565), (927, 33725), (1065, 29355), (1349, 23175), (1425, 21939), (1545, 20235), (1775, 17613), (1957, 15975), (2575, 12141), (3195, 9785), (4047, 7725), (4275, 7313), (4635, 6745), (5325, 5871)]