51609320

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{89}}^1\times {\mathrm{109}}^1$

素因数の和:235

約数の個数: 128

約数和(自身を含む): 142560000

約数和(自身を除く): 90950680

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 19, 20, 28, 35, 38, 40, 56, 70, 76, 89, 95, 109, 133, 140, 152, 178, 190, 218, 266, 280, 356, 380, 436, 445, 532, 545, 623, 665, 712, 760, 763, 872, 890, 1064, 1090, 1246, 1330, 1526, 1691, 1780, 2071, 2180, 2492, 2660, 3052, 3115, 3382, 3560, 3815, 4142, 4360, 4984, 5320, 6104, 6230, 6764, 7630, 8284, 8455, 9701, 10355, 11837, 12460, 13528, 14497, 15260, 16568, 16910, 19402, 20710, 23674, 24920, 28994, 30520, 33820, 38804, 41420, 47348, 48505, 57988, 59185, 67640, 67907, 72485, 77608, 82840, 94696, 97010, 115976, 118370, 135814, 144970, 184319, 194020, 236740, 271628, 289940, 339535, 368638, 388040, 473480, 543256, 579880, 679070, 737276, 921595, 1290233, 1358140, 1474552, 1843190, 2580466, 2716280, 3686380, 5160932, 6451165, 7372760, 10321864, 12902330, 25804660, 51609320]

約数ペア:

[(1, 51609320), (2, 25804660), (4, 12902330), (5, 10321864), (7, 7372760), (8, 6451165), (10, 5160932), (14, 3686380), (19, 2716280), (20, 2580466), (28, 1843190), (35, 1474552), (38, 1358140), (40, 1290233), (56, 921595), (70, 737276), (76, 679070), (89, 579880), (95, 543256), (109, 473480), (133, 388040), (140, 368638), (152, 339535), (178, 289940), (190, 271628), (218, 236740), (266, 194020), (280, 184319), (356, 144970), (380, 135814), (436, 118370), (445, 115976), (532, 97010), (545, 94696), (623, 82840), (665, 77608), (712, 72485), (760, 67907), (763, 67640), (872, 59185), (890, 57988), (1064, 48505), (1090, 47348), (1246, 41420), (1330, 38804), (1526, 33820), (1691, 30520), (1780, 28994), (2071, 24920), (2180, 23674), (2492, 20710), (2660, 19402), (3052, 16910), (3115, 16568), (3382, 15260), (3560, 14497), (3815, 13528), (4142, 12460), (4360, 11837), (4984, 10355), (5320, 9701), (6104, 8455), (6230, 8284), (6764, 7630)]