80993920

素因数分解:

$2^7\times 5^1\times 7^1\times {\mathrm{101}}^1\times {\mathrm{179}}^1$

素因数の和:306

約数の個数: 128

約数和(自身を含む): 224726400

約数和(自身を除く): 143732480

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 56, 64, 70, 80, 101, 112, 128, 140, 160, 179, 202, 224, 280, 320, 358, 404, 448, 505, 560, 640, 707, 716, 808, 895, 896, 1010, 1120, 1253, 1414, 1432, 1616, 1790, 2020, 2240, 2506, 2828, 2864, 3232, 3535, 3580, 4040, 4480, 5012, 5656, 5728, 6265, 6464, 7070, 7160, 8080, 10024, 11312, 11456, 12530, 12928, 14140, 14320, 16160, 18079, 20048, 22624, 22912, 25060, 28280, 28640, 32320, 36158, 40096, 45248, 50120, 56560, 57280, 64640, 72316, 80192, 90395, 90496, 100240, 113120, 114560, 126553, 144632, 160384, 180790, 200480, 226240, 253106, 289264, 361580, 400960, 452480, 506212, 578528, 632765, 723160, 801920, 1012424, 1157056, 1265530, 1446320, 2024848, 2314112, 2531060, 2892640, 4049696, 5062120, 5785280, 8099392, 10124240, 11570560, 16198784, 20248480, 40496960, 80993920]

約数ペア:

[(1, 80993920), (2, 40496960), (4, 20248480), (5, 16198784), (7, 11570560), (8, 10124240), (10, 8099392), (14, 5785280), (16, 5062120), (20, 4049696), (28, 2892640), (32, 2531060), (35, 2314112), (40, 2024848), (56, 1446320), (64, 1265530), (70, 1157056), (80, 1012424), (101, 801920), (112, 723160), (128, 632765), (140, 578528), (160, 506212), (179, 452480), (202, 400960), (224, 361580), (280, 289264), (320, 253106), (358, 226240), (404, 200480), (448, 180790), (505, 160384), (560, 144632), (640, 126553), (707, 114560), (716, 113120), (808, 100240), (895, 90496), (896, 90395), (1010, 80192), (1120, 72316), (1253, 64640), (1414, 57280), (1432, 56560), (1616, 50120), (1790, 45248), (2020, 40096), (2240, 36158), (2506, 32320), (2828, 28640), (2864, 28280), (3232, 25060), (3535, 22912), (3580, 22624), (4040, 20048), (4480, 18079), (5012, 16160), (5656, 14320), (5728, 14140), (6265, 12928), (6464, 12530), (7070, 11456), (7160, 11312), (8080, 10024)]