405720960

素因数分解:

$2^7\times 3^1\times 5^1\times {\mathrm{211313}}^1$

素因数の和:211335

約数の個数: 64

約数和(自身を含む): 1293241680

約数和(自身を除く): 887520720

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, 211313, 422626, 633939, 845252, 1056565, 1267878, 1690504, 2113130, 2535756, 3169695, 3381008, 4226260, 5071512, 6339390, 6762016, 8452520, 10143024, 12678780, 13524032, 16905040, 20286048, 25357560, 27048064, 33810080, 40572096, 50715120, 67620160, 81144192, 101430240, 135240320, 202860480, 405720960]

約数ペア:

[(1, 405720960), (2, 202860480), (3, 135240320), (4, 101430240), (5, 81144192), (6, 67620160), (8, 50715120), (10, 40572096), (12, 33810080), (15, 27048064), (16, 25357560), (20, 20286048), (24, 16905040), (30, 13524032), (32, 12678780), (40, 10143024), (48, 8452520), (60, 6762016), (64, 6339390), (80, 5071512), (96, 4226260), (120, 3381008), (128, 3169695), (160, 2535756), (192, 2113130), (240, 1690504), (320, 1267878), (384, 1056565), (480, 845252), (640, 633939), (960, 422626), (1920, 211313)]