207965775

素因数分解:

$3^1\times 5^2\times {\mathrm{61}}^1\times {\mathrm{131}}^1\times {\mathrm{347}}^1$

素因数の和:552

約数の個数: 48

約数和(自身を含む): 353155968

約数和(自身を除く): 145190193

約数列:

[1, 3, 5, 15, 25, 61, 75, 131, 183, 305, 347, 393, 655, 915, 1041, 1525, 1735, 1965, 3275, 4575, 5205, 7991, 8675, 9825, 21167, 23973, 26025, 39955, 45457, 63501, 105835, 119865, 136371, 199775, 227285, 317505, 529175, 599325, 681855, 1136425, 1587525, 2772877, 3409275, 8318631, 13864385, 41593155, 69321925, 207965775]

約数ペア:

[(1, 207965775), (3, 69321925), (5, 41593155), (15, 13864385), (25, 8318631), (61, 3409275), (75, 2772877), (131, 1587525), (183, 1136425), (305, 681855), (347, 599325), (393, 529175), (655, 317505), (915, 227285), (1041, 199775), (1525, 136371), (1735, 119865), (1965, 105835), (3275, 63501), (4575, 45457), (5205, 39955), (7991, 26025), (8675, 23973), (9825, 21167)]