71374040

素因数分解:

$2^3\times 5^1\times {\mathrm{53}}^1\times {\mathrm{131}}^1\times {\mathrm{257}}^1$

素因数の和:452

約数の個数: 64

約数和(自身を含む): 165512160

約数和(自身を除く): 94138120

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 53, 106, 131, 212, 257, 262, 265, 424, 514, 524, 530, 655, 1028, 1048, 1060, 1285, 1310, 2056, 2120, 2570, 2620, 5140, 5240, 6943, 10280, 13621, 13886, 27242, 27772, 33667, 34715, 54484, 55544, 67334, 68105, 69430, 108968, 134668, 136210, 138860, 168335, 269336, 272420, 277720, 336670, 544840, 673340, 1346680, 1784351, 3568702, 7137404, 8921755, 14274808, 17843510, 35687020, 71374040]

約数ペア:

[(1, 71374040), (2, 35687020), (4, 17843510), (5, 14274808), (8, 8921755), (10, 7137404), (20, 3568702), (40, 1784351), (53, 1346680), (106, 673340), (131, 544840), (212, 336670), (257, 277720), (262, 272420), (265, 269336), (424, 168335), (514, 138860), (524, 136210), (530, 134668), (655, 108968), (1028, 69430), (1048, 68105), (1060, 67334), (1285, 55544), (1310, 54484), (2056, 34715), (2120, 33667), (2570, 27772), (2620, 27242), (5140, 13886), (5240, 13621), (6943, 10280)]