64041400

素因数分解:

$2^3\times 5^2\times {\mathrm{19}}^2\times {\mathrm{887}}^1$

素因数の和:941

約数の個数: 72

約数和(自身を含む): 157322520

約数和(自身を除く): 93281120

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 25, 38, 40, 50, 76, 95, 100, 152, 190, 200, 361, 380, 475, 722, 760, 887, 950, 1444, 1774, 1805, 1900, 2888, 3548, 3610, 3800, 4435, 7096, 7220, 8870, 9025, 14440, 16853, 17740, 18050, 22175, 33706, 35480, 36100, 44350, 67412, 72200, 84265, 88700, 134824, 168530, 177400, 320207, 337060, 421325, 640414, 674120, 842650, 1280828, 1601035, 1685300, 2561656, 3202070, 3370600, 6404140, 8005175, 12808280, 16010350, 32020700, 64041400]

約数ペア:

[(1, 64041400), (2, 32020700), (4, 16010350), (5, 12808280), (8, 8005175), (10, 6404140), (19, 3370600), (20, 3202070), (25, 2561656), (38, 1685300), (40, 1601035), (50, 1280828), (76, 842650), (95, 674120), (100, 640414), (152, 421325), (190, 337060), (200, 320207), (361, 177400), (380, 168530), (475, 134824), (722, 88700), (760, 84265), (887, 72200), (950, 67412), (1444, 44350), (1774, 36100), (1805, 35480), (1900, 33706), (2888, 22175), (3548, 18050), (3610, 17740), (3800, 16853), (4435, 14440), (7096, 9025), (7220, 8870)]