28196820

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{3643}}^1$

素因数の和:3701

約数の個数: 72

約数和(自身を含む): 87543456

約数和(自身を除く): 59346636

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 43, 45, 60, 86, 90, 129, 172, 180, 215, 258, 387, 430, 516, 645, 774, 860, 1290, 1548, 1935, 2580, 3643, 3870, 7286, 7740, 10929, 14572, 18215, 21858, 32787, 36430, 43716, 54645, 65574, 72860, 109290, 131148, 156649, 163935, 218580, 313298, 327870, 469947, 626596, 655740, 783245, 939894, 1409841, 1566490, 1879788, 2349735, 2819682, 3132980, 4699470, 5639364, 7049205, 9398940, 14098410, 28196820]

約数ペア:

[(1, 28196820), (2, 14098410), (3, 9398940), (4, 7049205), (5, 5639364), (6, 4699470), (9, 3132980), (10, 2819682), (12, 2349735), (15, 1879788), (18, 1566490), (20, 1409841), (30, 939894), (36, 783245), (43, 655740), (45, 626596), (60, 469947), (86, 327870), (90, 313298), (129, 218580), (172, 163935), (180, 156649), (215, 131148), (258, 109290), (387, 72860), (430, 65574), (516, 54645), (645, 43716), (774, 36430), (860, 32787), (1290, 21858), (1548, 18215), (1935, 14572), (2580, 10929), (3643, 7740), (3870, 7286)]