20180976825

素因数分解:

$3^1\times 5^2\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{615743}}^1$

素因数の和:615798

約数の個数: 48

約数和(自身を含む): 36649082880

約数和(自身を除く): 16468106055

約数列:

[1, 3, 5, 15, 19, 23, 25, 57, 69, 75, 95, 115, 285, 345, 437, 475, 575, 1311, 1425, 1725, 2185, 6555, 10925, 32775, 615743, 1847229, 3078715, 9236145, 11699117, 14162089, 15393575, 35097351, 42486267, 46180725, 58495585, 70810445, 175486755, 212431335, 269079691, 292477925, 354052225, 807239073, 877433775, 1062156675, 1345398455, 4036195365, 6726992275, 20180976825]

約数ペア:

[(1, 20180976825), (3, 6726992275), (5, 4036195365), (15, 1345398455), (19, 1062156675), (23, 877433775), (25, 807239073), (57, 354052225), (69, 292477925), (75, 269079691), (95, 212431335), (115, 175486755), (285, 70810445), (345, 58495585), (437, 46180725), (475, 42486267), (575, 35097351), (1311, 15393575), (1425, 14162089), (1725, 11699117), (2185, 9236145), (6555, 3078715), (10925, 1847229), (32775, 615743)]