18105920

素因数分解:

$2^6\times 5^1\times 7^1\times {\mathrm{59}}^1\times {\mathrm{137}}^1$

素因数の和:220

約数の個数: 112

約数和(自身を含む): 50474880

約数和(自身を除く): 32368960

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 56, 59, 64, 70, 80, 112, 118, 137, 140, 160, 224, 236, 274, 280, 295, 320, 413, 448, 472, 548, 560, 590, 685, 826, 944, 959, 1096, 1120, 1180, 1370, 1652, 1888, 1918, 2065, 2192, 2240, 2360, 2740, 3304, 3776, 3836, 4130, 4384, 4720, 4795, 5480, 6608, 7672, 8083, 8260, 8768, 9440, 9590, 10960, 13216, 15344, 16166, 16520, 18880, 19180, 21920, 26432, 30688, 32332, 33040, 38360, 40415, 43840, 56581, 61376, 64664, 66080, 76720, 80830, 113162, 129328, 132160, 153440, 161660, 226324, 258656, 282905, 306880, 323320, 452648, 517312, 565810, 646640, 905296, 1131620, 1293280, 1810592, 2263240, 2586560, 3621184, 4526480, 9052960, 18105920]

約数ペア:

[(1, 18105920), (2, 9052960), (4, 4526480), (5, 3621184), (7, 2586560), (8, 2263240), (10, 1810592), (14, 1293280), (16, 1131620), (20, 905296), (28, 646640), (32, 565810), (35, 517312), (40, 452648), (56, 323320), (59, 306880), (64, 282905), (70, 258656), (80, 226324), (112, 161660), (118, 153440), (137, 132160), (140, 129328), (160, 113162), (224, 80830), (236, 76720), (274, 66080), (280, 64664), (295, 61376), (320, 56581), (413, 43840), (448, 40415), (472, 38360), (548, 33040), (560, 32332), (590, 30688), (685, 26432), (826, 21920), (944, 19180), (959, 18880), (1096, 16520), (1120, 16166), (1180, 15344), (1370, 13216), (1652, 10960), (1888, 9590), (1918, 9440), (2065, 8768), (2192, 8260), (2240, 8083), (2360, 7672), (2740, 6608), (3304, 5480), (3776, 4795), (3836, 4720), (4130, 4384)]