644712960

素因数分解:

$2^9\times 3^1\times 5^1\times {\mathrm{127}}^1\times {\mathrm{661}}^1$

素因数の和:814

約数の個数: 160

約数和(自身を含む): 2080438272

約数和(自身を除く): 1435725312

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, 127, 128, 160, 192, 240, 254, 256, 320, 381, 384, 480, 508, 512, 635, 640, 661, 762, 768, 960, 1016, 1270, 1280, 1322, 1524, 1536, 1905, 1920, 1983, 2032, 2540, 2560, 2644, 3048, 3305, 3810, 3840, 3966, 4064, 5080, 5288, 6096, 6610, 7620, 7680, 7932, 8128, 9915, 10160, 10576, 12192, 13220, 15240, 15864, 16256, 19830, 20320, 21152, 24384, 26440, 30480, 31728, 32512, 39660, 40640, 42304, 48768, 52880, 60960, 63456, 65024, 79320, 81280, 83947, 84608, 97536, 105760, 121920, 126912, 158640, 162560, 167894, 169216, 195072, 211520, 243840, 251841, 253824, 317280, 325120, 335788, 338432, 419735, 423040, 487680, 503682, 507648, 634560, 671576, 839470, 846080, 975360, 1007364, 1015296, 1259205, 1269120, 1343152, 1678940, 1692160, 2014728, 2518410, 2538240, 2686304, 3357880, 4029456, 5036820, 5076480, 5372608, 6715760, 8058912, 10073640, 10745216, 13431520, 16117824, 20147280, 21490432, 26863040, 32235648, 40294560, 42980864, 53726080, 64471296, 80589120, 107452160, 128942592, 161178240, 214904320, 322356480, 644712960]

約数ペア:

[(1, 644712960), (2, 322356480), (3, 214904320), (4, 161178240), (5, 128942592), (6, 107452160), (8, 80589120), (10, 64471296), (12, 53726080), (15, 42980864), (16, 40294560), (20, 32235648), (24, 26863040), (30, 21490432), (32, 20147280), (40, 16117824), (48, 13431520), (60, 10745216), (64, 10073640), (80, 8058912), (96, 6715760), (120, 5372608), (127, 5076480), (128, 5036820), (160, 4029456), (192, 3357880), (240, 2686304), (254, 2538240), (256, 2518410), (320, 2014728), (381, 1692160), (384, 1678940), (480, 1343152), (508, 1269120), (512, 1259205), (635, 1015296), (640, 1007364), (661, 975360), (762, 846080), (768, 839470), (960, 671576), (1016, 634560), (1270, 507648), (1280, 503682), (1322, 487680), (1524, 423040), (1536, 419735), (1905, 338432), (1920, 335788), (1983, 325120), (2032, 317280), (2540, 253824), (2560, 251841), (2644, 243840), (3048, 211520), (3305, 195072), (3810, 169216), (3840, 167894), (3966, 162560), (4064, 158640), (5080, 126912), (5288, 121920), (6096, 105760), (6610, 97536), (7620, 84608), (7680, 83947), (7932, 81280), (8128, 79320), (9915, 65024), (10160, 63456), (10576, 60960), (12192, 52880), (13220, 48768), (15240, 42304), (15864, 40640), (16256, 39660), (19830, 32512), (20320, 31728), (21152, 30480), (24384, 26440)]