409600400

素因数分解:

$2^4\times 5^2\times {\mathrm{11}}^1\times {\mathrm{127}}^1\times {\mathrm{733}}^1$

素因数の和:889

約数の個数: 120

約数和(自身を含む): 1083454464

約数和(自身を除く): 673854064

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 25, 40, 44, 50, 55, 80, 88, 100, 110, 127, 176, 200, 220, 254, 275, 400, 440, 508, 550, 635, 733, 880, 1016, 1100, 1270, 1397, 1466, 2032, 2200, 2540, 2794, 2932, 3175, 3665, 4400, 5080, 5588, 5864, 6350, 6985, 7330, 8063, 10160, 11176, 11728, 12700, 13970, 14660, 16126, 18325, 22352, 25400, 27940, 29320, 32252, 34925, 36650, 40315, 50800, 55880, 58640, 64504, 69850, 73300, 80630, 93091, 111760, 129008, 139700, 146600, 161260, 186182, 201575, 279400, 293200, 322520, 372364, 403150, 465455, 558800, 645040, 744728, 806300, 930910, 1024001, 1489456, 1612600, 1861820, 2048002, 2327275, 3225200, 3723640, 4096004, 4654550, 5120005, 7447280, 8192008, 9309100, 10240010, 16384016, 18618200, 20480020, 25600025, 37236400, 40960040, 51200050, 81920080, 102400100, 204800200, 409600400]

約数ペア:

[(1, 409600400), (2, 204800200), (4, 102400100), (5, 81920080), (8, 51200050), (10, 40960040), (11, 37236400), (16, 25600025), (20, 20480020), (22, 18618200), (25, 16384016), (40, 10240010), (44, 9309100), (50, 8192008), (55, 7447280), (80, 5120005), (88, 4654550), (100, 4096004), (110, 3723640), (127, 3225200), (176, 2327275), (200, 2048002), (220, 1861820), (254, 1612600), (275, 1489456), (400, 1024001), (440, 930910), (508, 806300), (550, 744728), (635, 645040), (733, 558800), (880, 465455), (1016, 403150), (1100, 372364), (1270, 322520), (1397, 293200), (1466, 279400), (2032, 201575), (2200, 186182), (2540, 161260), (2794, 146600), (2932, 139700), (3175, 129008), (3665, 111760), (4400, 93091), (5080, 80630), (5588, 73300), (5864, 69850), (6350, 64504), (6985, 58640), (7330, 55880), (8063, 50800), (10160, 40315), (11176, 36650), (11728, 34925), (12700, 32252), (13970, 29320), (14660, 27940), (16126, 25400), (18325, 22352)]