31985265

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{89}}^1\times {\mathrm{97}}^1$

素因数の和:226

約数の個数: 64

約数和(自身を含む): 59270400

約数和(自身を除く): 27285135

約数列:

[1, 3, 5, 13, 15, 19, 39, 57, 65, 89, 95, 97, 195, 247, 267, 285, 291, 445, 485, 741, 1157, 1235, 1261, 1335, 1455, 1691, 1843, 3471, 3705, 3783, 5073, 5529, 5785, 6305, 8455, 8633, 9215, 17355, 18915, 21983, 23959, 25365, 25899, 27645, 43165, 65949, 71877, 109915, 112229, 119795, 129495, 164027, 329745, 336687, 359385, 492081, 561145, 820135, 1683435, 2132351, 2460405, 6397053, 10661755, 31985265]

約数ペア:

[(1, 31985265), (3, 10661755), (5, 6397053), (13, 2460405), (15, 2132351), (19, 1683435), (39, 820135), (57, 561145), (65, 492081), (89, 359385), (95, 336687), (97, 329745), (195, 164027), (247, 129495), (267, 119795), (285, 112229), (291, 109915), (445, 71877), (485, 65949), (741, 43165), (1157, 27645), (1235, 25899), (1261, 25365), (1335, 23959), (1455, 21983), (1691, 18915), (1843, 17355), (3471, 9215), (3705, 8633), (3783, 8455), (5073, 6305), (5529, 5785)]