20689200

素因数分解:

$2^4\times 3^2\times 5^2\times 7^1\times {\mathrm{821}}^1$

素因数の和:852

約数の個数: 180

約数和(自身を含む): 82153968

約数和(自身を除く): 61464768

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 16, 18, 20, 21, 24, 25, 28, 30, 35, 36, 40, 42, 45, 48, 50, 56, 60, 63, 70, 72, 75, 80, 84, 90, 100, 105, 112, 120, 126, 140, 144, 150, 168, 175, 180, 200, 210, 225, 240, 252, 280, 300, 315, 336, 350, 360, 400, 420, 450, 504, 525, 560, 600, 630, 700, 720, 821, 840, 900, 1008, 1050, 1200, 1260, 1400, 1575, 1642, 1680, 1800, 2100, 2463, 2520, 2800, 3150, 3284, 3600, 4105, 4200, 4926, 5040, 5747, 6300, 6568, 7389, 8210, 8400, 9852, 11494, 12315, 12600, 13136, 14778, 16420, 17241, 19704, 20525, 22988, 24630, 25200, 28735, 29556, 32840, 34482, 36945, 39408, 41050, 45976, 49260, 51723, 57470, 59112, 61575, 65680, 68964, 73890, 82100, 86205, 91952, 98520, 103446, 114940, 118224, 123150, 137928, 143675, 147780, 164200, 172410, 184725, 197040, 206892, 229880, 246300, 258615, 275856, 287350, 295560, 328400, 344820, 369450, 413784, 431025, 459760, 492600, 517230, 574700, 591120, 689640, 738900, 827568, 862050, 985200, 1034460, 1149400, 1293075, 1379280, 1477800, 1724100, 2068920, 2298800, 2586150, 2955600, 3448200, 4137840, 5172300, 6896400, 10344600, 20689200]

約数ペア:

[(1, 20689200), (2, 10344600), (3, 6896400), (4, 5172300), (5, 4137840), (6, 3448200), (7, 2955600), (8, 2586150), (9, 2298800), (10, 2068920), (12, 1724100), (14, 1477800), (15, 1379280), (16, 1293075), (18, 1149400), (20, 1034460), (21, 985200), (24, 862050), (25, 827568), (28, 738900), (30, 689640), (35, 591120), (36, 574700), (40, 517230), (42, 492600), (45, 459760), (48, 431025), (50, 413784), (56, 369450), (60, 344820), (63, 328400), (70, 295560), (72, 287350), (75, 275856), (80, 258615), (84, 246300), (90, 229880), (100, 206892), (105, 197040), (112, 184725), (120, 172410), (126, 164200), (140, 147780), (144, 143675), (150, 137928), (168, 123150), (175, 118224), (180, 114940), (200, 103446), (210, 98520), (225, 91952), (240, 86205), (252, 82100), (280, 73890), (300, 68964), (315, 65680), (336, 61575), (350, 59112), (360, 57470), (400, 51723), (420, 49260), (450, 45976), (504, 41050), (525, 39408), (560, 36945), (600, 34482), (630, 32840), (700, 29556), (720, 28735), (821, 25200), (840, 24630), (900, 22988), (1008, 20525), (1050, 19704), (1200, 17241), (1260, 16420), (1400, 14778), (1575, 13136), (1642, 12600), (1680, 12315), (1800, 11494), (2100, 9852), (2463, 8400), (2520, 8210), (2800, 7389), (3150, 6568), (3284, 6300), (3600, 5747), (4105, 5040), (4200, 4926)]