280563136

素因数分解:

$2^6\times 7^1\times {\mathrm{641}}^1\times {\mathrm{977}}^1$

素因数の和:1637

約数の個数: 56

約数和(自身を含む): 637922016

約数和(自身を除く): 357358880

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 56, 64, 112, 224, 448, 641, 977, 1282, 1954, 2564, 3908, 4487, 5128, 6839, 7816, 8974, 10256, 13678, 15632, 17948, 20512, 27356, 31264, 35896, 41024, 54712, 62528, 71792, 109424, 143584, 218848, 287168, 437696, 626257, 1252514, 2505028, 4383799, 5010056, 8767598, 10020112, 17535196, 20040224, 35070392, 40080448, 70140784, 140281568, 280563136]

約数ペア:

[(1, 280563136), (2, 140281568), (4, 70140784), (7, 40080448), (8, 35070392), (14, 20040224), (16, 17535196), (28, 10020112), (32, 8767598), (56, 5010056), (64, 4383799), (112, 2505028), (224, 1252514), (448, 626257), (641, 437696), (977, 287168), (1282, 218848), (1954, 143584), (2564, 109424), (3908, 71792), (4487, 62528), (5128, 54712), (6839, 41024), (7816, 35896), (8974, 31264), (10256, 27356), (13678, 20512), (15632, 17948)]