20177500920

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{127}}^1\times {\mathrm{661}}^1\times {\mathrm{2003}}^1$

素因数の和:2805

約数の個数: 128

約数和(自身を含む): 61131939840

約数和(自身を除く): 40954438920

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120, 127, 254, 381, 508, 635, 661, 762, 1016, 1270, 1322, 1524, 1905, 1983, 2003, 2540, 2644, 3048, 3305, 3810, 3966, 4006, 5080, 5288, 6009, 6610, 7620, 7932, 8012, 9915, 10015, 12018, 13220, 15240, 15864, 16024, 19830, 20030, 24036, 26440, 30045, 39660, 40060, 48072, 60090, 79320, 80120, 83947, 120180, 167894, 240360, 251841, 254381, 335788, 419735, 503682, 508762, 671576, 763143, 839470, 1007364, 1017524, 1259205, 1271905, 1323983, 1526286, 1678940, 2014728, 2035048, 2518410, 2543810, 2647966, 3052572, 3357880, 3815715, 3971949, 5036820, 5087620, 5295932, 6105144, 6619915, 7631430, 7943898, 10073640, 10175240, 10591864, 13239830, 15262860, 15887796, 19859745, 26479660, 30525720, 31775592, 39719490, 52959320, 79438980, 158877960, 168145841, 336291682, 504437523, 672583364, 840729205, 1008875046, 1345166728, 1681458410, 2017750092, 2522187615, 3362916820, 4035500184, 5044375230, 6725833640, 10088750460, 20177500920]

約数ペア:

[(1, 20177500920), (2, 10088750460), (3, 6725833640), (4, 5044375230), (5, 4035500184), (6, 3362916820), (8, 2522187615), (10, 2017750092), (12, 1681458410), (15, 1345166728), (20, 1008875046), (24, 840729205), (30, 672583364), (40, 504437523), (60, 336291682), (120, 168145841), (127, 158877960), (254, 79438980), (381, 52959320), (508, 39719490), (635, 31775592), (661, 30525720), (762, 26479660), (1016, 19859745), (1270, 15887796), (1322, 15262860), (1524, 13239830), (1905, 10591864), (1983, 10175240), (2003, 10073640), (2540, 7943898), (2644, 7631430), (3048, 6619915), (3305, 6105144), (3810, 5295932), (3966, 5087620), (4006, 5036820), (5080, 3971949), (5288, 3815715), (6009, 3357880), (6610, 3052572), (7620, 2647966), (7932, 2543810), (8012, 2518410), (9915, 2035048), (10015, 2014728), (12018, 1678940), (13220, 1526286), (15240, 1323983), (15864, 1271905), (16024, 1259205), (19830, 1017524), (20030, 1007364), (24036, 839470), (26440, 763143), (30045, 671576), (39660, 508762), (40060, 503682), (48072, 419735), (60090, 335788), (79320, 254381), (80120, 251841), (83947, 240360), (120180, 167894)]