64253840

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{179}}^1\times {\mathrm{641}}^1$

素因数の和:840

約数の個数: 80

約数和(自身を含む): 171953280

約数和(自身を除く): 107699440

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 179, 280, 358, 560, 641, 716, 895, 1253, 1282, 1432, 1790, 2506, 2564, 2864, 3205, 3580, 4487, 5012, 5128, 6265, 6410, 7160, 8974, 10024, 10256, 12530, 12820, 14320, 17948, 20048, 22435, 25060, 25640, 35896, 44870, 50120, 51280, 71792, 89740, 100240, 114739, 179480, 229478, 358960, 458956, 573695, 803173, 917912, 1147390, 1606346, 1835824, 2294780, 3212692, 4015865, 4589560, 6425384, 8031730, 9179120, 12850768, 16063460, 32126920, 64253840]

約数ペア:

[(1, 64253840), (2, 32126920), (4, 16063460), (5, 12850768), (7, 9179120), (8, 8031730), (10, 6425384), (14, 4589560), (16, 4015865), (20, 3212692), (28, 2294780), (35, 1835824), (40, 1606346), (56, 1147390), (70, 917912), (80, 803173), (112, 573695), (140, 458956), (179, 358960), (280, 229478), (358, 179480), (560, 114739), (641, 100240), (716, 89740), (895, 71792), (1253, 51280), (1282, 50120), (1432, 44870), (1790, 35896), (2506, 25640), (2564, 25060), (2864, 22435), (3205, 20048), (3580, 17948), (4487, 14320), (5012, 12820), (5128, 12530), (6265, 10256), (6410, 10024), (7160, 8974)]