77211280

素因数分解:

$2^4\times 5^1\times {\mathrm{17}}^1\times {\mathrm{56773}}^1$

素因数の和:56803

約数の個数: 40

約数和(自身を含む): 190079352

約数和(自身を除く): 112868072

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 34, 40, 68, 80, 85, 136, 170, 272, 340, 680, 1360, 56773, 113546, 227092, 283865, 454184, 567730, 908368, 965141, 1135460, 1930282, 2270920, 3860564, 4541840, 4825705, 7721128, 9651410, 15442256, 19302820, 38605640, 77211280]

約数ペア:

[(1, 77211280), (2, 38605640), (4, 19302820), (5, 15442256), (8, 9651410), (10, 7721128), (16, 4825705), (17, 4541840), (20, 3860564), (34, 2270920), (40, 1930282), (68, 1135460), (80, 965141), (85, 908368), (136, 567730), (170, 454184), (272, 283865), (340, 227092), (680, 113546), (1360, 56773)]