639880320

素因数分解:

$2^7\times 3^1\times 5^1\times {\mathrm{333271}}^1$

素因数の和:333293

約数の個数: 64

約数和(自身を含む): 2039624640

約数和(自身を除く): 1399744320

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, 320, 384, 480, 640, 960, 1920, 333271, 666542, 999813, 1333084, 1666355, 1999626, 2666168, 3332710, 3999252, 4999065, 5332336, 6665420, 7998504, 9998130, 10664672, 13330840, 15997008, 19996260, 21329344, 26661680, 31994016, 39992520, 42658688, 53323360, 63988032, 79985040, 106646720, 127976064, 159970080, 213293440, 319940160, 639880320]

約数ペア:

[(1, 639880320), (2, 319940160), (3, 213293440), (4, 159970080), (5, 127976064), (6, 106646720), (8, 79985040), (10, 63988032), (12, 53323360), (15, 42658688), (16, 39992520), (20, 31994016), (24, 26661680), (30, 21329344), (32, 19996260), (40, 15997008), (48, 13330840), (60, 10664672), (64, 9998130), (80, 7998504), (96, 6665420), (120, 5332336), (128, 4999065), (160, 3999252), (192, 3332710), (240, 2666168), (320, 1999626), (384, 1666355), (480, 1333084), (640, 999813), (960, 666542), (1920, 333271)]