80207680

素因数分解:

$2^6\times 5^1\times 7^1\times {\mathrm{61}}^1\times {\mathrm{587}}^1$

素因数の和:672

約数の個数: 112

約数和(自身を含む): 222235776

約数和(自身を除く): 142028096

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 56, 61, 64, 70, 80, 112, 122, 140, 160, 224, 244, 280, 305, 320, 427, 448, 488, 560, 587, 610, 854, 976, 1120, 1174, 1220, 1708, 1952, 2135, 2240, 2348, 2440, 2935, 3416, 3904, 4109, 4270, 4696, 4880, 5870, 6832, 8218, 8540, 9392, 9760, 11740, 13664, 16436, 17080, 18784, 19520, 20545, 23480, 27328, 32872, 34160, 35807, 37568, 41090, 46960, 65744, 68320, 71614, 82180, 93920, 131488, 136640, 143228, 164360, 179035, 187840, 250649, 262976, 286456, 328720, 358070, 501298, 572912, 657440, 716140, 1002596, 1145824, 1253245, 1314880, 1432280, 2005192, 2291648, 2506490, 2864560, 4010384, 5012980, 5729120, 8020768, 10025960, 11458240, 16041536, 20051920, 40103840, 80207680]

約数ペア:

[(1, 80207680), (2, 40103840), (4, 20051920), (5, 16041536), (7, 11458240), (8, 10025960), (10, 8020768), (14, 5729120), (16, 5012980), (20, 4010384), (28, 2864560), (32, 2506490), (35, 2291648), (40, 2005192), (56, 1432280), (61, 1314880), (64, 1253245), (70, 1145824), (80, 1002596), (112, 716140), (122, 657440), (140, 572912), (160, 501298), (224, 358070), (244, 328720), (280, 286456), (305, 262976), (320, 250649), (427, 187840), (448, 179035), (488, 164360), (560, 143228), (587, 136640), (610, 131488), (854, 93920), (976, 82180), (1120, 71614), (1174, 68320), (1220, 65744), (1708, 46960), (1952, 41090), (2135, 37568), (2240, 35807), (2348, 34160), (2440, 32872), (2935, 27328), (3416, 23480), (3904, 20545), (4109, 19520), (4270, 18784), (4696, 17080), (4880, 16436), (5870, 13664), (6832, 11740), (8218, 9760), (8540, 9392)]