258411440

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{20063}}^1$

素因数の和:20106

約数の個数: 80

約数和(自身を含む): 716525568

約数和(自身を除く): 458114128

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 23, 28, 35, 40, 46, 56, 70, 80, 92, 112, 115, 140, 161, 184, 230, 280, 322, 368, 460, 560, 644, 805, 920, 1288, 1610, 1840, 2576, 3220, 6440, 12880, 20063, 40126, 80252, 100315, 140441, 160504, 200630, 280882, 321008, 401260, 461449, 561764, 702205, 802520, 922898, 1123528, 1404410, 1605040, 1845796, 2247056, 2307245, 2808820, 3230143, 3691592, 4614490, 5617640, 6460286, 7383184, 9228980, 11235280, 12920572, 16150715, 18457960, 25841144, 32301430, 36915920, 51682288, 64602860, 129205720, 258411440]

約数ペア:

[(1, 258411440), (2, 129205720), (4, 64602860), (5, 51682288), (7, 36915920), (8, 32301430), (10, 25841144), (14, 18457960), (16, 16150715), (20, 12920572), (23, 11235280), (28, 9228980), (35, 7383184), (40, 6460286), (46, 5617640), (56, 4614490), (70, 3691592), (80, 3230143), (92, 2808820), (112, 2307245), (115, 2247056), (140, 1845796), (161, 1605040), (184, 1404410), (230, 1123528), (280, 922898), (322, 802520), (368, 702205), (460, 561764), (560, 461449), (644, 401260), (805, 321008), (920, 280882), (1288, 200630), (1610, 160504), (1840, 140441), (2576, 100315), (3220, 80252), (6440, 40126), (12880, 20063)]