620401920

素因数分解:

$2^8\times 3^1\times 5^1\times {\mathrm{161563}}^1$

素因数の和:161587

約数の個数: 72

約数和(自身を含む): 1981420896

約数和(自身を除く): 1361018976

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 32, 40, 48, 60, 64, 80, 96, 120, 128, 160, 192, 240, 256, 320, 384, 480, 640, 768, 960, 1280, 1920, 3840, 161563, 323126, 484689, 646252, 807815, 969378, 1292504, 1615630, 1938756, 2423445, 2585008, 3231260, 3877512, 4846890, 5170016, 6462520, 7755024, 9693780, 10340032, 12925040, 15510048, 19387560, 20680064, 25850080, 31020096, 38775120, 41360128, 51700160, 62040192, 77550240, 103400320, 124080384, 155100480, 206800640, 310200960, 620401920]

約数ペア:

[(1, 620401920), (2, 310200960), (3, 206800640), (4, 155100480), (5, 124080384), (6, 103400320), (8, 77550240), (10, 62040192), (12, 51700160), (15, 41360128), (16, 38775120), (20, 31020096), (24, 25850080), (30, 20680064), (32, 19387560), (40, 15510048), (48, 12925040), (60, 10340032), (64, 9693780), (80, 7755024), (96, 6462520), (120, 5170016), (128, 4846890), (160, 3877512), (192, 3231260), (240, 2585008), (256, 2423445), (320, 1938756), (384, 1615630), (480, 1292504), (640, 969378), (768, 807815), (960, 646252), (1280, 484689), (1920, 323126), (3840, 161563)]