61282840

素因数分解:

$2^3\times 5^1\times {\mathrm{53}}^1\times {\mathrm{137}}^1\times {\mathrm{211}}^1$

素因数の和:412

約数の個数: 64

約数和(自身を含む): 142184160

約数和(自身を除く): 80901320

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 53, 106, 137, 211, 212, 265, 274, 422, 424, 530, 548, 685, 844, 1055, 1060, 1096, 1370, 1688, 2110, 2120, 2740, 4220, 5480, 7261, 8440, 11183, 14522, 22366, 28907, 29044, 36305, 44732, 55915, 57814, 58088, 72610, 89464, 111830, 115628, 144535, 145220, 223660, 231256, 289070, 290440, 447320, 578140, 1156280, 1532071, 3064142, 6128284, 7660355, 12256568, 15320710, 30641420, 61282840]

約数ペア:

[(1, 61282840), (2, 30641420), (4, 15320710), (5, 12256568), (8, 7660355), (10, 6128284), (20, 3064142), (40, 1532071), (53, 1156280), (106, 578140), (137, 447320), (211, 290440), (212, 289070), (265, 231256), (274, 223660), (422, 145220), (424, 144535), (530, 115628), (548, 111830), (685, 89464), (844, 72610), (1055, 58088), (1060, 57814), (1096, 55915), (1370, 44732), (1688, 36305), (2110, 29044), (2120, 28907), (2740, 22366), (4220, 14522), (5480, 11183), (7261, 8440)]