20420688

素因数分解:

$2^4\times 3^1\times {\mathrm{23}}^1\times {\mathrm{53}}^1\times {\mathrm{349}}^1$

素因数の和:436

約数の個数: 80

約数和(自身を含む): 56246400

約数和(自身を除く): 35825712

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 23, 24, 46, 48, 53, 69, 92, 106, 138, 159, 184, 212, 276, 318, 349, 368, 424, 552, 636, 698, 848, 1047, 1104, 1219, 1272, 1396, 2094, 2438, 2544, 2792, 3657, 4188, 4876, 5584, 7314, 8027, 8376, 9752, 14628, 16054, 16752, 18497, 19504, 24081, 29256, 32108, 36994, 48162, 55491, 58512, 64216, 73988, 96324, 110982, 128432, 147976, 192648, 221964, 295952, 385296, 425431, 443928, 850862, 887856, 1276293, 1701724, 2552586, 3403448, 5105172, 6806896, 10210344, 20420688]

約数ペア:

[(1, 20420688), (2, 10210344), (3, 6806896), (4, 5105172), (6, 3403448), (8, 2552586), (12, 1701724), (16, 1276293), (23, 887856), (24, 850862), (46, 443928), (48, 425431), (53, 385296), (69, 295952), (92, 221964), (106, 192648), (138, 147976), (159, 128432), (184, 110982), (212, 96324), (276, 73988), (318, 64216), (349, 58512), (368, 55491), (424, 48162), (552, 36994), (636, 32108), (698, 29256), (848, 24081), (1047, 19504), (1104, 18497), (1219, 16752), (1272, 16054), (1396, 14628), (2094, 9752), (2438, 8376), (2544, 8027), (2792, 7314), (3657, 5584), (4188, 4876)]