90451220

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^2\times {\mathrm{15649}}^1$

素因数の和:15692

約数の個数: 36

約数和(自身を含む): 201791100

約数和(自身を除く): 111339880

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 170, 289, 340, 578, 1156, 1445, 2890, 5780, 15649, 31298, 62596, 78245, 156490, 266033, 312980, 532066, 1064132, 1330165, 2660330, 4522561, 5320660, 9045122, 18090244, 22612805, 45225610, 90451220]

約数ペア:

[(1, 90451220), (2, 45225610), (4, 22612805), (5, 18090244), (10, 9045122), (17, 5320660), (20, 4522561), (34, 2660330), (68, 1330165), (85, 1064132), (170, 532066), (289, 312980), (340, 266033), (578, 156490), (1156, 78245), (1445, 62596), (2890, 31298), (5780, 15649)]