21826640

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{1459}}^1$

素因数の和:1500

約数の個数: 80

約数和(自身を含む): 58656960

約数和(自身を除く): 36830320

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 17, 20, 22, 34, 40, 44, 55, 68, 80, 85, 88, 110, 136, 170, 176, 187, 220, 272, 340, 374, 440, 680, 748, 880, 935, 1360, 1459, 1496, 1870, 2918, 2992, 3740, 5836, 7295, 7480, 11672, 14590, 14960, 16049, 23344, 24803, 29180, 32098, 49606, 58360, 64196, 80245, 99212, 116720, 124015, 128392, 160490, 198424, 248030, 256784, 272833, 320980, 396848, 496060, 545666, 641960, 992120, 1091332, 1283920, 1364165, 1984240, 2182664, 2728330, 4365328, 5456660, 10913320, 21826640]

約数ペア:

[(1, 21826640), (2, 10913320), (4, 5456660), (5, 4365328), (8, 2728330), (10, 2182664), (11, 1984240), (16, 1364165), (17, 1283920), (20, 1091332), (22, 992120), (34, 641960), (40, 545666), (44, 496060), (55, 396848), (68, 320980), (80, 272833), (85, 256784), (88, 248030), (110, 198424), (136, 160490), (170, 128392), (176, 124015), (187, 116720), (220, 99212), (272, 80245), (340, 64196), (374, 58360), (440, 49606), (680, 32098), (748, 29180), (880, 24803), (935, 23344), (1360, 16049), (1459, 14960), (1496, 14590), (1870, 11672), (2918, 7480), (2992, 7295), (3740, 5836)]