78016995

素因数分解:

$3^2\times 5^1\times 7^1\times {\mathrm{17}}^2\times {\mathrm{857}}^1$

素因数の和:909

約数の個数: 72

約数和(自身を含む): 164365344

約数和(自身を除く): 86348349

約数列:

[1, 3, 5, 7, 9, 15, 17, 21, 35, 45, 51, 63, 85, 105, 119, 153, 255, 289, 315, 357, 595, 765, 857, 867, 1071, 1445, 1785, 2023, 2571, 2601, 4285, 4335, 5355, 5999, 6069, 7713, 10115, 12855, 13005, 14569, 17997, 18207, 29995, 30345, 38565, 43707, 53991, 72845, 89985, 91035, 101983, 131121, 218535, 247673, 269955, 305949, 509915, 655605, 743019, 917847, 1238365, 1529745, 1733711, 2229057, 3715095, 4589235, 5201133, 8668555, 11145285, 15603399, 26005665, 78016995]

約数ペア:

[(1, 78016995), (3, 26005665), (5, 15603399), (7, 11145285), (9, 8668555), (15, 5201133), (17, 4589235), (21, 3715095), (35, 2229057), (45, 1733711), (51, 1529745), (63, 1238365), (85, 917847), (105, 743019), (119, 655605), (153, 509915), (255, 305949), (289, 269955), (315, 247673), (357, 218535), (595, 131121), (765, 101983), (857, 91035), (867, 89985), (1071, 72845), (1445, 53991), (1785, 43707), (2023, 38565), (2571, 30345), (2601, 29995), (4285, 18207), (4335, 17997), (5355, 14569), (5999, 13005), (6069, 12855), (7713, 10115)]