51257025

素因数分解:

$3^2\times 5^2\times {\mathrm{37}}^1\times {\mathrm{47}}^1\times {\mathrm{131}}^1$

素因数の和:231

約数の個数: 72

約数和(自身を含む): 97029504

約数和(自身を除く): 45772479

約数列:

[1, 3, 5, 9, 15, 25, 37, 45, 47, 75, 111, 131, 141, 185, 225, 235, 333, 393, 423, 555, 655, 705, 925, 1175, 1179, 1665, 1739, 1965, 2115, 2775, 3275, 3525, 4847, 5217, 5895, 6157, 8325, 8695, 9825, 10575, 14541, 15651, 18471, 24235, 26085, 29475, 30785, 43475, 43623, 55413, 72705, 78255, 92355, 121175, 130425, 153925, 218115, 227809, 277065, 363525, 391275, 461775, 683427, 1090575, 1139045, 1385325, 2050281, 3417135, 5695225, 10251405, 17085675, 51257025]

約数ペア:

[(1, 51257025), (3, 17085675), (5, 10251405), (9, 5695225), (15, 3417135), (25, 2050281), (37, 1385325), (45, 1139045), (47, 1090575), (75, 683427), (111, 461775), (131, 391275), (141, 363525), (185, 277065), (225, 227809), (235, 218115), (333, 153925), (393, 130425), (423, 121175), (555, 92355), (655, 78255), (705, 72705), (925, 55413), (1175, 43623), (1179, 43475), (1665, 30785), (1739, 29475), (1965, 26085), (2115, 24235), (2775, 18471), (3275, 15651), (3525, 14541), (4847, 10575), (5217, 9825), (5895, 8695), (6157, 8325)]