64855280

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{179}}^1\times {\mathrm{647}}^1$

素因数の和:846

約数の個数: 80

約数和(自身を含む): 173560320

約数和(自身を除く): 108705040

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, 647, 716, 895, 1253, 1294, 1432, 1790, 2506, 2588, 2864, 3235, 3580, 4529, 5012, 5176, 6265, 6470, 7160, 9058, 10024, 10352, 12530, 12940, 14320, 18116, 20048, 22645, 25060, 25880, 36232, 45290, 50120, 51760, 72464, 90580, 100240, 115813, 181160, 231626, 362320, 463252, 579065, 810691, 926504, 1158130, 1621382, 1853008, 2316260, 3242764, 4053455, 4632520, 6485528, 8106910, 9265040, 12971056, 16213820, 32427640, 64855280]

約数ペア:

[(1, 64855280), (2, 32427640), (4, 16213820), (5, 12971056), (7, 9265040), (8, 8106910), (10, 6485528), (14, 4632520), (16, 4053455), (20, 3242764), (28, 2316260), (35, 1853008), (40, 1621382), (56, 1158130), (70, 926504), (80, 810691), (112, 579065), (140, 463252), (179, 362320), (280, 231626), (358, 181160), (560, 115813), (647, 100240), (716, 90580), (895, 72464), (1253, 51760), (1294, 50120), (1432, 45290), (1790, 36232), (2506, 25880), (2588, 25060), (2864, 22645), (3235, 20048), (3580, 18116), (4529, 14320), (5012, 12940), (5176, 12530), (6265, 10352), (6470, 10024), (7160, 9058)]