20670560

素因数分解:

$2^5\times 5^1\times {\mathrm{23}}^1\times {\mathrm{41}}^1\times {\mathrm{137}}^1$

素因数の和:216

約数の個数: 96

約数和(自身を含む): 52581312

約数和(自身を除く): 31910752

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 23, 32, 40, 41, 46, 80, 82, 92, 115, 137, 160, 164, 184, 205, 230, 274, 328, 368, 410, 460, 548, 656, 685, 736, 820, 920, 943, 1096, 1312, 1370, 1640, 1840, 1886, 2192, 2740, 3151, 3280, 3680, 3772, 4384, 4715, 5480, 5617, 6302, 6560, 7544, 9430, 10960, 11234, 12604, 15088, 15755, 18860, 21920, 22468, 25208, 28085, 30176, 31510, 37720, 44936, 50416, 56170, 63020, 75440, 89872, 100832, 112340, 126040, 129191, 150880, 179744, 224680, 252080, 258382, 449360, 504160, 516764, 645955, 898720, 1033528, 1291910, 2067056, 2583820, 4134112, 5167640, 10335280, 20670560]

約数ペア:

[(1, 20670560), (2, 10335280), (4, 5167640), (5, 4134112), (8, 2583820), (10, 2067056), (16, 1291910), (20, 1033528), (23, 898720), (32, 645955), (40, 516764), (41, 504160), (46, 449360), (80, 258382), (82, 252080), (92, 224680), (115, 179744), (137, 150880), (160, 129191), (164, 126040), (184, 112340), (205, 100832), (230, 89872), (274, 75440), (328, 63020), (368, 56170), (410, 50416), (460, 44936), (548, 37720), (656, 31510), (685, 30176), (736, 28085), (820, 25208), (920, 22468), (943, 21920), (1096, 18860), (1312, 15755), (1370, 15088), (1640, 12604), (1840, 11234), (1886, 10960), (2192, 9430), (2740, 7544), (3151, 6560), (3280, 6302), (3680, 5617), (3772, 5480), (4384, 4715)]