51265240

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{311}}^1\times {\mathrm{317}}^1$

素因数の和:652

約数の個数: 64

約数和(自身を含む): 125012160

約数和(自身を除く): 73746920

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 311, 317, 520, 622, 634, 1244, 1268, 1555, 1585, 2488, 2536, 3110, 3170, 4043, 4121, 6220, 6340, 8086, 8242, 12440, 12680, 16172, 16484, 20215, 20605, 32344, 32968, 40430, 41210, 80860, 82420, 98587, 161720, 164840, 197174, 394348, 492935, 788696, 985870, 1281631, 1971740, 2563262, 3943480, 5126524, 6408155, 10253048, 12816310, 25632620, 51265240]

約数ペア:

[(1, 51265240), (2, 25632620), (4, 12816310), (5, 10253048), (8, 6408155), (10, 5126524), (13, 3943480), (20, 2563262), (26, 1971740), (40, 1281631), (52, 985870), (65, 788696), (104, 492935), (130, 394348), (260, 197174), (311, 164840), (317, 161720), (520, 98587), (622, 82420), (634, 80860), (1244, 41210), (1268, 40430), (1555, 32968), (1585, 32344), (2488, 20605), (2536, 20215), (3110, 16484), (3170, 16172), (4043, 12680), (4121, 12440), (6220, 8242), (6340, 8086)]