80540320

素因数分解:

$2^5\times 5^1\times 7^2\times {\mathrm{10273}}^1$

素因数の和:10302

約数の個数: 72

約数和(自身を含む): 221363604

約数和(自身を除く): 140823284

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 49, 56, 70, 80, 98, 112, 140, 160, 196, 224, 245, 280, 392, 490, 560, 784, 980, 1120, 1568, 1960, 3920, 7840, 10273, 20546, 41092, 51365, 71911, 82184, 102730, 143822, 164368, 205460, 287644, 328736, 359555, 410920, 503377, 575288, 719110, 821840, 1006754, 1150576, 1438220, 1643680, 2013508, 2301152, 2516885, 2876440, 4027016, 5033770, 5752880, 8054032, 10067540, 11505760, 16108064, 20135080, 40270160, 80540320]

約数ペア:

[(1, 80540320), (2, 40270160), (4, 20135080), (5, 16108064), (7, 11505760), (8, 10067540), (10, 8054032), (14, 5752880), (16, 5033770), (20, 4027016), (28, 2876440), (32, 2516885), (35, 2301152), (40, 2013508), (49, 1643680), (56, 1438220), (70, 1150576), (80, 1006754), (98, 821840), (112, 719110), (140, 575288), (160, 503377), (196, 410920), (224, 359555), (245, 328736), (280, 287644), (392, 205460), (490, 164368), (560, 143822), (784, 102730), (980, 82184), (1120, 71911), (1568, 51365), (1960, 41092), (3920, 20546), (7840, 10273)]