280530880

素因数分解:

$2^6\times 5^1\times 7^2\times {\mathrm{17891}}^1$

素因数の和:17922

約数の個数: 84

約数和(自身を含む): 777121128

約数和(自身を除く): 496590248

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 49, 56, 64, 70, 80, 98, 112, 140, 160, 196, 224, 245, 280, 320, 392, 448, 490, 560, 784, 980, 1120, 1568, 1960, 2240, 3136, 3920, 7840, 15680, 17891, 35782, 71564, 89455, 125237, 143128, 178910, 250474, 286256, 357820, 500948, 572512, 626185, 715640, 876659, 1001896, 1145024, 1252370, 1431280, 1753318, 2003792, 2504740, 2862560, 3506636, 4007584, 4383295, 5009480, 5725120, 7013272, 8015168, 8766590, 10018960, 14026544, 17533180, 20037920, 28053088, 35066360, 40075840, 56106176, 70132720, 140265440, 280530880]

約数ペア:

[(1, 280530880), (2, 140265440), (4, 70132720), (5, 56106176), (7, 40075840), (8, 35066360), (10, 28053088), (14, 20037920), (16, 17533180), (20, 14026544), (28, 10018960), (32, 8766590), (35, 8015168), (40, 7013272), (49, 5725120), (56, 5009480), (64, 4383295), (70, 4007584), (80, 3506636), (98, 2862560), (112, 2504740), (140, 2003792), (160, 1753318), (196, 1431280), (224, 1252370), (245, 1145024), (280, 1001896), (320, 876659), (392, 715640), (448, 626185), (490, 572512), (560, 500948), (784, 357820), (980, 286256), (1120, 250474), (1568, 178910), (1960, 143128), (2240, 125237), (3136, 89455), (3920, 71564), (7840, 35782), (15680, 17891)]