25109315

素因数分解:

$5^1\times 7^3\times {\mathrm{11}}^4$

素因数の和:70

約数の個数: 40

約数和(自身を含む): 38652000

約数和(自身を除く): 13542685

約数列:

[1, 5, 7, 11, 35, 49, 55, 77, 121, 245, 343, 385, 539, 605, 847, 1331, 1715, 2695, 3773, 4235, 5929, 6655, 9317, 14641, 18865, 29645, 41503, 46585, 65219, 73205, 102487, 207515, 326095, 456533, 512435, 717409, 2282665, 3587045, 5021863, 25109315]

約数ペア:

[(1, 25109315), (5, 5021863), (7, 3587045), (11, 2282665), (35, 717409), (49, 512435), (55, 456533), (77, 326095), (121, 207515), (245, 102487), (343, 73205), (385, 65219), (539, 46585), (605, 41503), (847, 29645), (1331, 18865), (1715, 14641), (2695, 9317), (3773, 6655), (4235, 5929)]