64520120

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{131}}^1\times {\mathrm{1759}}^1$

素因数の和:1908

約数の個数: 64

約数和(自身を含む): 167270400

約数和(自身を除く): 102750280

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 131, 140, 262, 280, 524, 655, 917, 1048, 1310, 1759, 1834, 2620, 3518, 3668, 4585, 5240, 7036, 7336, 8795, 9170, 12313, 14072, 17590, 18340, 24626, 35180, 36680, 49252, 61565, 70360, 98504, 123130, 230429, 246260, 460858, 492520, 921716, 1152145, 1613003, 1843432, 2304290, 3226006, 4608580, 6452012, 8065015, 9217160, 12904024, 16130030, 32260060, 64520120]

約数ペア:

[(1, 64520120), (2, 32260060), (4, 16130030), (5, 12904024), (7, 9217160), (8, 8065015), (10, 6452012), (14, 4608580), (20, 3226006), (28, 2304290), (35, 1843432), (40, 1613003), (56, 1152145), (70, 921716), (131, 492520), (140, 460858), (262, 246260), (280, 230429), (524, 123130), (655, 98504), (917, 70360), (1048, 61565), (1310, 49252), (1759, 36680), (1834, 35180), (2620, 24626), (3518, 18340), (3668, 17590), (4585, 14072), (5240, 12313), (7036, 9170), (7336, 8795)]