398763980

素因数分解:

$2^2\times 5^1\times {\mathrm{47}}^1\times {\mathrm{283}}^1\times {\mathrm{1499}}^1$

素因数の和:1838

約数の個数: 48

約数和(自身を含む): 858816000

約数和(自身を除く): 460052020

約数列:

[1, 2, 4, 5, 10, 20, 47, 94, 188, 235, 283, 470, 566, 940, 1132, 1415, 1499, 2830, 2998, 5660, 5996, 7495, 13301, 14990, 26602, 29980, 53204, 66505, 70453, 133010, 140906, 266020, 281812, 352265, 424217, 704530, 848434, 1409060, 1696868, 2121085, 4242170, 8484340, 19938199, 39876398, 79752796, 99690995, 199381990, 398763980]

約数ペア:

[(1, 398763980), (2, 199381990), (4, 99690995), (5, 79752796), (10, 39876398), (20, 19938199), (47, 8484340), (94, 4242170), (188, 2121085), (235, 1696868), (283, 1409060), (470, 848434), (566, 704530), (940, 424217), (1132, 352265), (1415, 281812), (1499, 266020), (2830, 140906), (2998, 133010), (5660, 70453), (5996, 66505), (7495, 53204), (13301, 29980), (14990, 26602)]