249575180

素因数分解:

$2^2\times 5^1\times {\mathrm{97}}^1\times {\mathrm{103}}^1\times {\mathrm{1249}}^1$

素因数の和:1458

約数の個数: 48

約数和(自身を含む): 535080000

約数和(自身を除く): 285504820

約数列:

[1, 2, 4, 5, 10, 20, 97, 103, 194, 206, 388, 412, 485, 515, 970, 1030, 1249, 1940, 2060, 2498, 4996, 6245, 9991, 12490, 19982, 24980, 39964, 49955, 99910, 121153, 128647, 199820, 242306, 257294, 484612, 514588, 605765, 643235, 1211530, 1286470, 2423060, 2572940, 12478759, 24957518, 49915036, 62393795, 124787590, 249575180]

約数ペア:

[(1, 249575180), (2, 124787590), (4, 62393795), (5, 49915036), (10, 24957518), (20, 12478759), (97, 2572940), (103, 2423060), (194, 1286470), (206, 1211530), (388, 643235), (412, 605765), (485, 514588), (515, 484612), (970, 257294), (1030, 242306), (1249, 199820), (1940, 128647), (2060, 121153), (2498, 99910), (4996, 49955), (6245, 39964), (9991, 24980), (12490, 19982)]