990704

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{433}}^1$

素因数の和:465

約数の個数: 40

約数和(自身を含む): 2260272

約数和(自身を除く): 1269568

約数列:

[1, 2, 4, 8, 11, 13, 16, 22, 26, 44, 52, 88, 104, 143, 176, 208, 286, 433, 572, 866, 1144, 1732, 2288, 3464, 4763, 5629, 6928, 9526, 11258, 19052, 22516, 38104, 45032, 61919, 76208, 90064, 123838, 247676, 495352, 990704]

約数ペア:

[(1, 990704), (2, 495352), (4, 247676), (8, 123838), (11, 90064), (13, 76208), (16, 61919), (22, 45032), (26, 38104), (44, 22516), (52, 19052), (88, 11258), (104, 9526), (143, 6928), (176, 5629), (208, 4763), (286, 3464), (433, 2288), (572, 1732), (866, 1144)]