28919100

素因数分解:

$2^2\times 3^1\times 5^2\times 7^1\times {\mathrm{47}}^1\times {\mathrm{293}}^1$

素因数の和:364

約数の個数: 144

約数和(自身を含む): 97993728

約数和(自身を除く): 69074628

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 25, 28, 30, 35, 42, 47, 50, 60, 70, 75, 84, 94, 100, 105, 140, 141, 150, 175, 188, 210, 235, 282, 293, 300, 329, 350, 420, 470, 525, 564, 586, 658, 700, 705, 879, 940, 987, 1050, 1172, 1175, 1316, 1410, 1465, 1645, 1758, 1974, 2051, 2100, 2350, 2820, 2930, 3290, 3516, 3525, 3948, 4102, 4395, 4700, 4935, 5860, 6153, 6580, 7050, 7325, 8204, 8225, 8790, 9870, 10255, 12306, 13771, 14100, 14650, 16450, 17580, 19740, 20510, 21975, 24612, 24675, 27542, 29300, 30765, 32900, 41020, 41313, 43950, 49350, 51275, 55084, 61530, 68855, 82626, 87900, 96397, 98700, 102550, 123060, 137710, 153825, 165252, 192794, 205100, 206565, 275420, 289191, 307650, 344275, 385588, 413130, 481985, 578382, 615300, 688550, 826260, 963970, 1032825, 1156764, 1377100, 1445955, 1927940, 2065650, 2409925, 2891910, 4131300, 4819850, 5783820, 7229775, 9639700, 14459550, 28919100]

約数ペア:

[(1, 28919100), (2, 14459550), (3, 9639700), (4, 7229775), (5, 5783820), (6, 4819850), (7, 4131300), (10, 2891910), (12, 2409925), (14, 2065650), (15, 1927940), (20, 1445955), (21, 1377100), (25, 1156764), (28, 1032825), (30, 963970), (35, 826260), (42, 688550), (47, 615300), (50, 578382), (60, 481985), (70, 413130), (75, 385588), (84, 344275), (94, 307650), (100, 289191), (105, 275420), (140, 206565), (141, 205100), (150, 192794), (175, 165252), (188, 153825), (210, 137710), (235, 123060), (282, 102550), (293, 98700), (300, 96397), (329, 87900), (350, 82626), (420, 68855), (470, 61530), (525, 55084), (564, 51275), (586, 49350), (658, 43950), (700, 41313), (705, 41020), (879, 32900), (940, 30765), (987, 29300), (1050, 27542), (1172, 24675), (1175, 24612), (1316, 21975), (1410, 20510), (1465, 19740), (1645, 17580), (1758, 16450), (1974, 14650), (2051, 14100), (2100, 13771), (2350, 12306), (2820, 10255), (2930, 9870), (3290, 8790), (3516, 8225), (3525, 8204), (3948, 7325), (4102, 7050), (4395, 6580), (4700, 6153), (4935, 5860)]