328241920

素因数分解:

$2^8\times 5^1\times {\mathrm{101}}^1\times {\mathrm{2539}}^1$

素因数の和:2661

約数の個数: 72

約数和(自身を含む): 794339280

約数和(自身を除く): 466097360

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 101, 128, 160, 202, 256, 320, 404, 505, 640, 808, 1010, 1280, 1616, 2020, 2539, 3232, 4040, 5078, 6464, 8080, 10156, 12695, 12928, 16160, 20312, 25390, 25856, 32320, 40624, 50780, 64640, 81248, 101560, 129280, 162496, 203120, 256439, 324992, 406240, 512878, 649984, 812480, 1025756, 1282195, 1624960, 2051512, 2564390, 3249920, 4103024, 5128780, 8206048, 10257560, 16412096, 20515120, 32824192, 41030240, 65648384, 82060480, 164120960, 328241920]

約数ペア:

[(1, 328241920), (2, 164120960), (4, 82060480), (5, 65648384), (8, 41030240), (10, 32824192), (16, 20515120), (20, 16412096), (32, 10257560), (40, 8206048), (64, 5128780), (80, 4103024), (101, 3249920), (128, 2564390), (160, 2051512), (202, 1624960), (256, 1282195), (320, 1025756), (404, 812480), (505, 649984), (640, 512878), (808, 406240), (1010, 324992), (1280, 256439), (1616, 203120), (2020, 162496), (2539, 129280), (3232, 101560), (4040, 81248), (5078, 64640), (6464, 50780), (8080, 40624), (10156, 32320), (12695, 25856), (12928, 25390), (16160, 20312)]