20539389440

素因数分解:

$2^9\times 5^1\times {\mathrm{967}}^1\times {\mathrm{8297}}^1$

素因数の和:9287

約数の個数: 80

約数和(自身を含む): 49303264032

約数和(自身を除く): 28763874592

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 320, 512, 640, 967, 1280, 1934, 2560, 3868, 4835, 7736, 8297, 9670, 15472, 16594, 19340, 30944, 33188, 38680, 41485, 61888, 66376, 77360, 82970, 123776, 132752, 154720, 165940, 247552, 265504, 309440, 331880, 495104, 531008, 618880, 663760, 1062016, 1237760, 1327520, 2124032, 2475520, 2655040, 4248064, 5310080, 8023199, 10620160, 16046398, 21240320, 32092796, 40115995, 64185592, 80231990, 128371184, 160463980, 256742368, 320927960, 513484736, 641855920, 1026969472, 1283711840, 2053938944, 2567423680, 4107877888, 5134847360, 10269694720, 20539389440]

約数ペア:

[(1, 20539389440), (2, 10269694720), (4, 5134847360), (5, 4107877888), (8, 2567423680), (10, 2053938944), (16, 1283711840), (20, 1026969472), (32, 641855920), (40, 513484736), (64, 320927960), (80, 256742368), (128, 160463980), (160, 128371184), (256, 80231990), (320, 64185592), (512, 40115995), (640, 32092796), (967, 21240320), (1280, 16046398), (1934, 10620160), (2560, 8023199), (3868, 5310080), (4835, 4248064), (7736, 2655040), (8297, 2475520), (9670, 2124032), (15472, 1327520), (16594, 1237760), (19340, 1062016), (30944, 663760), (33188, 618880), (38680, 531008), (41485, 495104), (61888, 331880), (66376, 309440), (77360, 265504), (82970, 247552), (123776, 165940), (132752, 154720)]