78474975

素因数分解:

$3^1\times 5^2\times {\mathrm{17}}^1\times {\mathrm{61}}^1\times {\mathrm{1009}}^1$

素因数の和:1100

約数の個数: 48

約数和(自身を含む): 139767840

約数和(自身を除く): 61292865

約数列:

[1, 3, 5, 15, 17, 25, 51, 61, 75, 85, 183, 255, 305, 425, 915, 1009, 1037, 1275, 1525, 3027, 3111, 4575, 5045, 5185, 15135, 15555, 17153, 25225, 25925, 51459, 61549, 75675, 77775, 85765, 184647, 257295, 307745, 428825, 923235, 1046333, 1286475, 1538725, 3138999, 4616175, 5231665, 15694995, 26158325, 78474975]

約数ペア:

[(1, 78474975), (3, 26158325), (5, 15694995), (15, 5231665), (17, 4616175), (25, 3138999), (51, 1538725), (61, 1286475), (75, 1046333), (85, 923235), (183, 428825), (255, 307745), (305, 257295), (425, 184647), (915, 85765), (1009, 77775), (1037, 75675), (1275, 61549), (1525, 51459), (3027, 25925), (3111, 25225), (4575, 17153), (5045, 15555), (5185, 15135)]