20164890255

素因数分解:

$3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{83}}^1\times {\mathrm{353}}^1\times {\mathrm{2699}}^1$

素因数の和:3160

約数の個数: 64

約数和(自身を含む): 34684070400

約数和(自身を除く): 14519180145

約数列:

[1, 3, 5, 15, 17, 51, 83, 85, 249, 255, 353, 415, 1059, 1245, 1411, 1765, 2699, 4233, 5295, 6001, 7055, 8097, 13495, 18003, 21165, 29299, 30005, 40485, 45883, 87897, 90015, 137649, 146495, 224017, 229415, 439485, 498083, 672051, 688245, 952747, 1120085, 1494249, 2490415, 2858241, 3360255, 3808289, 4763735, 7471245, 11424867, 14291205, 16196699, 19041445, 48590097, 57124335, 79078001, 80983495, 237234003, 242950485, 395390005, 1186170015, 1344326017, 4032978051, 6721630085, 20164890255]

約数ペア:

[(1, 20164890255), (3, 6721630085), (5, 4032978051), (15, 1344326017), (17, 1186170015), (51, 395390005), (83, 242950485), (85, 237234003), (249, 80983495), (255, 79078001), (353, 57124335), (415, 48590097), (1059, 19041445), (1245, 16196699), (1411, 14291205), (1765, 11424867), (2699, 7471245), (4233, 4763735), (5295, 3808289), (6001, 3360255), (7055, 2858241), (8097, 2490415), (13495, 1494249), (18003, 1120085), (21165, 952747), (29299, 688245), (30005, 672051), (40485, 498083), (45883, 439485), (87897, 229415), (90015, 224017), (137649, 146495)]