42780020

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{103}}^1\times {\mathrm{1093}}^1$

素因数の和:1224

約数の個数: 48

約数和(自身を含む): 95571840

約数和(自身を除く): 52791820

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 103, 190, 206, 380, 412, 515, 1030, 1093, 1957, 2060, 2186, 3914, 4372, 5465, 7828, 9785, 10930, 19570, 20767, 21860, 39140, 41534, 83068, 103835, 112579, 207670, 225158, 415340, 450316, 562895, 1125790, 2139001, 2251580, 4278002, 8556004, 10695005, 21390010, 42780020]

約数ペア:

[(1, 42780020), (2, 21390010), (4, 10695005), (5, 8556004), (10, 4278002), (19, 2251580), (20, 2139001), (38, 1125790), (76, 562895), (95, 450316), (103, 415340), (190, 225158), (206, 207670), (380, 112579), (412, 103835), (515, 83068), (1030, 41534), (1093, 39140), (1957, 21860), (2060, 20767), (2186, 19570), (3914, 10930), (4372, 9785), (5465, 7828)]