71921985

素因数分解:

$3^1\times 5^1\times {\mathrm{17}}^2\times {\mathrm{47}}^1\times {\mathrm{353}}^1$

素因数の和:442

約数の個数: 48

約数和(自身を含む): 125197056

約数和(自身を除く): 53275071

約数列:

[1, 3, 5, 15, 17, 47, 51, 85, 141, 235, 255, 289, 353, 705, 799, 867, 1059, 1445, 1765, 2397, 3995, 4335, 5295, 6001, 11985, 13583, 16591, 18003, 30005, 40749, 49773, 67915, 82955, 90015, 102017, 203745, 248865, 282047, 306051, 510085, 846141, 1410235, 1530255, 4230705, 4794799, 14384397, 23973995, 71921985]

約数ペア:

[(1, 71921985), (3, 23973995), (5, 14384397), (15, 4794799), (17, 4230705), (47, 1530255), (51, 1410235), (85, 846141), (141, 510085), (235, 306051), (255, 282047), (289, 248865), (353, 203745), (705, 102017), (799, 90015), (867, 82955), (1059, 67915), (1445, 49773), (1765, 40749), (2397, 30005), (3995, 18003), (4335, 16591), (5295, 13583), (6001, 11985)]