201488980

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{18691}}^1$

素因数の和:18725

約数の個数: 72

約数和(自身を含む): 536983776

約数和(自身を除く): 335494796

約数列:

[1, 2, 4, 5, 7, 10, 11, 14, 20, 22, 28, 35, 44, 49, 55, 70, 77, 98, 110, 140, 154, 196, 220, 245, 308, 385, 490, 539, 770, 980, 1078, 1540, 2156, 2695, 5390, 10780, 18691, 37382, 74764, 93455, 130837, 186910, 205601, 261674, 373820, 411202, 523348, 654185, 822404, 915859, 1028005, 1308370, 1439207, 1831718, 2056010, 2616740, 2878414, 3663436, 4112020, 4579295, 5756828, 7196035, 9158590, 10074449, 14392070, 18317180, 20148898, 28784140, 40297796, 50372245, 100744490, 201488980]

約数ペア:

[(1, 201488980), (2, 100744490), (4, 50372245), (5, 40297796), (7, 28784140), (10, 20148898), (11, 18317180), (14, 14392070), (20, 10074449), (22, 9158590), (28, 7196035), (35, 5756828), (44, 4579295), (49, 4112020), (55, 3663436), (70, 2878414), (77, 2616740), (98, 2056010), (110, 1831718), (140, 1439207), (154, 1308370), (196, 1028005), (220, 915859), (245, 822404), (308, 654185), (385, 523348), (490, 411202), (539, 373820), (770, 261674), (980, 205601), (1078, 186910), (1540, 130837), (2156, 93455), (2695, 74764), (5390, 37382), (10780, 18691)]